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Finding the Fourth Proportional to 15,342.70, 23,012.70 and 4,248.40

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Solution

The fourth proportional to 15,342.70, 23,012.70 and 4,248.40 is: 6,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.70 : 23,012.70 = 4,248.40 : x
  2. Step 2: Convert to fraction form
    15,342.70/23,012.70 = 4,248.40/x
  3. Step 3: Cross multiply
    15,342.70x = 23,012.70 × 4,248.40
  4. Step 4: Simplify right side
    15,342.70x = 97,767,154.68
  5. Step 5: Solve for x
    x = 97,767,154.68/15,342.70
  6. Step 6: Final answer
    x = 6,372.23

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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.