Home / 19,001.57-28,499.68-6,521.38

Finding the Fourth Proportional to 19,001.57, 28,499.68 and 6,521.38

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Solution

The fourth proportional to 19,001.57, 28,499.68 and 6,521.38 is: 9,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.57 : 28,499.68 = 6,521.38 : x
  2. Step 2: Convert to fraction form
    19,001.57/28,499.68 = 6,521.38/x
  3. Step 3: Cross multiply
    19,001.57x = 28,499.68 × 6,521.38
  4. Step 4: Simplify right side
    19,001.57x = 185,857,243.16
  5. Step 5: Solve for x
    x = 185,857,243.16/19,001.57
  6. Step 6: Final answer
    x = 9,781.15

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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.