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Finding the Fourth Proportional to 15,519, 23,279.87 and 4,425.45

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Solution

The fourth proportional to 15,519, 23,279.87 and 4,425.45 is: 6,638.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519 : 23,279.87 = 4,425.45 : x
  2. Step 2: Convert to fraction form
    15,519/23,279.87 = 4,425.45/x
  3. Step 3: Cross multiply
    15,519x = 23,279.87 × 4,425.45
  4. Step 4: Simplify right side
    15,519x = 103,023,900.69
  5. Step 5: Solve for x
    x = 103,023,900.69/15,519
  6. Step 6: Final answer
    x = 6,638.57

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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.