Home / 15,461.80-23,192.70-9,921.40

Finding the Fourth Proportional to 15,461.80, 23,192.70 and 9,921.40

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Solution

The fourth proportional to 15,461.80, 23,192.70 and 9,921.40 is: 14,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.80 : 23,192.70 = 9,921.40 : x
  2. Step 2: Convert to fraction form
    15,461.80/23,192.70 = 9,921.40/x
  3. Step 3: Cross multiply
    15,461.80x = 23,192.70 × 9,921.40
  4. Step 4: Simplify right side
    15,461.80x = 230,104,053.78
  5. Step 5: Solve for x
    x = 230,104,053.78/15,461.80
  6. Step 6: Final answer
    x = 14,882.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.