Home / 15,364.11-21,206.48-9,400.76

Finding the Fourth Proportional to 15,364.11, 21,206.48 and 9,400.76

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Solution

The fourth proportional to 15,364.11, 21,206.48 and 9,400.76 is: 12,975.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.11 : 21,206.48 = 9,400.76 : x
  2. Step 2: Convert to fraction form
    15,364.11/21,206.48 = 9,400.76/x
  3. Step 3: Cross multiply
    15,364.11x = 21,206.48 × 9,400.76
  4. Step 4: Simplify right side
    15,364.11x = 199,356,955.41
  5. Step 5: Solve for x
    x = 199,356,955.41/15,364.11
  6. Step 6: Final answer
    x = 12,975.49

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Half scale
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Double scale
Find fourth proportional to 15,365.11, 21,207.86 and 9,401.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.