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Finding the Fourth Proportional to 15,491.98, 23,238.87 and 5,631.22

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Solution

The fourth proportional to 15,491.98, 23,238.87 and 5,631.22 is: 8,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.98 : 23,238.87 = 5,631.22 : x
  2. Step 2: Convert to fraction form
    15,491.98/23,238.87 = 5,631.22/x
  3. Step 3: Cross multiply
    15,491.98x = 23,238.87 × 5,631.22
  4. Step 4: Simplify right side
    15,491.98x = 130,863,189.52
  5. Step 5: Solve for x
    x = 130,863,189.52/15,491.98
  6. Step 6: Final answer
    x = 8,447.16

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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.