Home / 13,366.38-18,445.30-7,397.68

Finding the Fourth Proportional to 13,366.38, 18,445.30 and 7,397.68

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Solution

The fourth proportional to 13,366.38, 18,445.30 and 7,397.68 is: 10,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.38 : 18,445.30 = 7,397.68 : x
  2. Step 2: Convert to fraction form
    13,366.38/18,445.30 = 7,397.68/x
  3. Step 3: Cross multiply
    13,366.38x = 18,445.30 × 7,397.68
  4. Step 4: Simplify right side
    13,366.38x = 136,452,426.90
  5. Step 5: Solve for x
    x = 136,452,426.90/13,366.38
  6. Step 6: Final answer
    x = 10,208.63

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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.