Home / 15,041.49-20,756.21-8,326.79

Finding the Fourth Proportional to 15,041.49, 20,756.21 and 8,326.79

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Solution

The fourth proportional to 15,041.49, 20,756.21 and 8,326.79 is: 11,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.49 : 20,756.21 = 8,326.79 : x
  2. Step 2: Convert to fraction form
    15,041.49/20,756.21 = 8,326.79/x
  3. Step 3: Cross multiply
    15,041.49x = 20,756.21 × 8,326.79
  4. Step 4: Simplify right side
    15,041.49x = 172,832,601.87
  5. Step 5: Solve for x
    x = 172,832,601.87/15,041.49
  6. Step 6: Final answer
    x = 11,490.39

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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.