Home / 15,191.01-20,957.13-9,521.89

Finding the Fourth Proportional to 15,191.01, 20,957.13 and 9,521.89

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Solution

The fourth proportional to 15,191.01, 20,957.13 and 9,521.89 is: 13,136.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191.01 : 20,957.13 = 9,521.89 : x
  2. Step 2: Convert to fraction form
    15,191.01/20,957.13 = 9,521.89/x
  3. Step 3: Cross multiply
    15,191.01x = 20,957.13 × 9,521.89
  4. Step 4: Simplify right side
    15,191.01x = 199,551,434.18
  5. Step 5: Solve for x
    x = 199,551,434.18/15,191.01
  6. Step 6: Final answer
    x = 13,136.15

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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.