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Finding the Fourth Proportional to 8,395.60, 12,593.41 and 3,130.53

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Solution

The fourth proportional to 8,395.60, 12,593.41 and 3,130.53 is: 4,695.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.60 : 12,593.41 = 3,130.53 : x
  2. Step 2: Convert to fraction form
    8,395.60/12,593.41 = 3,130.53/x
  3. Step 3: Cross multiply
    8,395.60x = 12,593.41 × 3,130.53
  4. Step 4: Simplify right side
    8,395.60x = 39,423,969.19
  5. Step 5: Solve for x
    x = 39,423,969.19/8,395.60
  6. Step 6: Final answer
    x = 4,695.79

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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.