Home / 7,156.55-10,720.85-4,930.13

Finding the Fourth Proportional to 7,156.55, 10,720.85 and 4,930.13

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Solution

The fourth proportional to 7,156.55, 10,720.85 and 4,930.13 is: 7,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.55 : 10,720.85 = 4,930.13 : x
  2. Step 2: Convert to fraction form
    7,156.55/10,720.85 = 4,930.13/x
  3. Step 3: Cross multiply
    7,156.55x = 10,720.85 × 4,930.13
  4. Step 4: Simplify right side
    7,156.55x = 52,855,105.96
  5. Step 5: Solve for x
    x = 52,855,105.96/7,156.55
  6. Step 6: Final answer
    x = 7,385.56

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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.