Home / 15,665.27-21,618.02-8,952.98

Finding the Fourth Proportional to 15,665.27, 21,618.02 and 8,952.98

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Solution

The fourth proportional to 15,665.27, 21,618.02 and 8,952.98 is: 12,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.27 : 21,618.02 = 8,952.98 : x
  2. Step 2: Convert to fraction form
    15,665.27/21,618.02 = 8,952.98/x
  3. Step 3: Cross multiply
    15,665.27x = 21,618.02 × 8,952.98
  4. Step 4: Simplify right side
    15,665.27x = 193,545,614.99
  5. Step 5: Solve for x
    x = 193,545,614.99/15,665.27
  6. Step 6: Final answer
    x = 12,355.08

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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.