Home / 15,545.07-21,452.16-8,471.49

Finding the Fourth Proportional to 15,545.07, 21,452.16 and 8,471.49

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Solution

The fourth proportional to 15,545.07, 21,452.16 and 8,471.49 is: 11,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.07 : 21,452.16 = 8,471.49 : x
  2. Step 2: Convert to fraction form
    15,545.07/21,452.16 = 8,471.49/x
  3. Step 3: Cross multiply
    15,545.07x = 21,452.16 × 8,471.49
  4. Step 4: Simplify right side
    15,545.07x = 181,731,758.92
  5. Step 5: Solve for x
    x = 181,731,758.92/15,545.07
  6. Step 6: Final answer
    x = 11,690.64

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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.