Home / 13,323.20-18,385.65-7,354.76

Finding the Fourth Proportional to 13,323.20, 18,385.65 and 7,354.76

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Solution

The fourth proportional to 13,323.20, 18,385.65 and 7,354.76 is: 10,149.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.20 : 18,385.65 = 7,354.76 : x
  2. Step 2: Convert to fraction form
    13,323.20/18,385.65 = 7,354.76/x
  3. Step 3: Cross multiply
    13,323.20x = 18,385.65 × 7,354.76
  4. Step 4: Simplify right side
    13,323.20x = 135,221,951.27
  5. Step 5: Solve for x
    x = 135,221,951.27/13,323.20
  6. Step 6: Final answer
    x = 10,149.36

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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.