Home / 15,689.11-23,528.68-5,156.70

Finding the Fourth Proportional to 15,689.11, 23,528.68 and 5,156.70

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Solution

The fourth proportional to 15,689.11, 23,528.68 and 5,156.70 is: 7,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,689.11 : 23,528.68 = 5,156.70 : x
  2. Step 2: Convert to fraction form
    15,689.11/23,528.68 = 5,156.70/x
  3. Step 3: Cross multiply
    15,689.11x = 23,528.68 × 5,156.70
  4. Step 4: Simplify right side
    15,689.11x = 121,330,344.16
  5. Step 5: Solve for x
    x = 121,330,344.16/15,689.11
  6. Step 6: Final answer
    x = 7,733.41

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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.