Home / 10,518.68-15,780.90-3,593.72

Finding the Fourth Proportional to 10,518.68, 15,780.90 and 3,593.72

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Solution

The fourth proportional to 10,518.68, 15,780.90 and 3,593.72 is: 5,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.68 : 15,780.90 = 3,593.72 : x
  2. Step 2: Convert to fraction form
    10,518.68/15,780.90 = 3,593.72/x
  3. Step 3: Cross multiply
    10,518.68x = 15,780.90 × 3,593.72
  4. Step 4: Simplify right side
    10,518.68x = 56,712,135.95
  5. Step 5: Solve for x
    x = 56,712,135.95/10,518.68
  6. Step 6: Final answer
    x = 5,391.56

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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.