Home / 13,322.87-18,385.57-7,354.55

Finding the Fourth Proportional to 13,322.87, 18,385.57 and 7,354.55

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Solution

The fourth proportional to 13,322.87, 18,385.57 and 7,354.55 is: 10,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.87 : 18,385.57 = 7,354.55 : x
  2. Step 2: Convert to fraction form
    13,322.87/18,385.57 = 7,354.55/x
  3. Step 3: Cross multiply
    13,322.87x = 18,385.57 × 7,354.55
  4. Step 4: Simplify right side
    13,322.87x = 135,217,483.53
  5. Step 5: Solve for x
    x = 135,217,483.53/13,322.87
  6. Step 6: Final answer
    x = 10,149.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.