Home / 15,309.28-21,126.79-8,594.92

Finding the Fourth Proportional to 15,309.28, 21,126.79 and 8,594.92

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Solution

The fourth proportional to 15,309.28, 21,126.79 and 8,594.92 is: 11,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.28 : 21,126.79 = 8,594.92 : x
  2. Step 2: Convert to fraction form
    15,309.28/21,126.79 = 8,594.92/x
  3. Step 3: Cross multiply
    15,309.28x = 21,126.79 × 8,594.92
  4. Step 4: Simplify right side
    15,309.28x = 181,583,069.91
  5. Step 5: Solve for x
    x = 181,583,069.91/15,309.28
  6. Step 6: Final answer
    x = 11,860.98

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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.