Home / 15,515.31-23,276.57-5,126.43

Finding the Fourth Proportional to 15,515.31, 23,276.57 and 5,126.43

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Solution

The fourth proportional to 15,515.31, 23,276.57 and 5,126.43 is: 7,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.31 : 23,276.57 = 5,126.43 : x
  2. Step 2: Convert to fraction form
    15,515.31/23,276.57 = 5,126.43/x
  3. Step 3: Cross multiply
    15,515.31x = 23,276.57 × 5,126.43
  4. Step 4: Simplify right side
    15,515.31x = 119,325,681.11
  5. Step 5: Solve for x
    x = 119,325,681.11/15,515.31
  6. Step 6: Final answer
    x = 7,690.83

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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.