Home / 15,406.58-21,260.97-8,332.98

Finding the Fourth Proportional to 15,406.58, 21,260.97 and 8,332.98

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Solution

The fourth proportional to 15,406.58, 21,260.97 and 8,332.98 is: 11,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.58 : 21,260.97 = 8,332.98 : x
  2. Step 2: Convert to fraction form
    15,406.58/21,260.97 = 8,332.98/x
  3. Step 3: Cross multiply
    15,406.58x = 21,260.97 × 8,332.98
  4. Step 4: Simplify right side
    15,406.58x = 177,167,237.79
  5. Step 5: Solve for x
    x = 177,167,237.79/15,406.58
  6. Step 6: Final answer
    x = 11,499.45

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Half scale
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Double scale
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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.