Home / 10,542.05-15,815.80-5,607.63

Finding the Fourth Proportional to 10,542.05, 15,815.80 and 5,607.63

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Solution

The fourth proportional to 10,542.05, 15,815.80 and 5,607.63 is: 8,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.05 : 15,815.80 = 5,607.63 : x
  2. Step 2: Convert to fraction form
    10,542.05/15,815.80 = 5,607.63/x
  3. Step 3: Cross multiply
    10,542.05x = 15,815.80 × 5,607.63
  4. Step 4: Simplify right side
    10,542.05x = 88,689,154.55
  5. Step 5: Solve for x
    x = 88,689,154.55/10,542.05
  6. Step 6: Final answer
    x = 8,412.89

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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.