Home / 15,658.13-21,606.10-8,943.28

Finding the Fourth Proportional to 15,658.13, 21,606.10 and 8,943.28

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Solution

The fourth proportional to 15,658.13, 21,606.10 and 8,943.28 is: 12,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658.13 : 21,606.10 = 8,943.28 : x
  2. Step 2: Convert to fraction form
    15,658.13/21,606.10 = 8,943.28/x
  3. Step 3: Cross multiply
    15,658.13x = 21,606.10 × 8,943.28
  4. Step 4: Simplify right side
    15,658.13x = 193,229,325.63
  5. Step 5: Solve for x
    x = 193,229,325.63/15,658.13
  6. Step 6: Final answer
    x = 12,340.51

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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.