Home / 15,549.92-21,441.95-10,505.38

Finding the Fourth Proportional to 15,549.92, 21,441.95 and 10,505.38

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Solution

The fourth proportional to 15,549.92, 21,441.95 and 10,505.38 is: 14,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.92 : 21,441.95 = 10,505.38 : x
  2. Step 2: Convert to fraction form
    15,549.92/21,441.95 = 10,505.38/x
  3. Step 3: Cross multiply
    15,549.92x = 21,441.95 × 10,505.38
  4. Step 4: Simplify right side
    15,549.92x = 225,255,832.69
  5. Step 5: Solve for x
    x = 225,255,832.69/15,549.92
  6. Step 6: Final answer
    x = 14,485.98

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Half scale
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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.