Home / 12,358.24-18,534.12-3,590.80

Finding the Fourth Proportional to 12,358.24, 18,534.12 and 3,590.80

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Solution

The fourth proportional to 12,358.24, 18,534.12 and 3,590.80 is: 5,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.24 : 18,534.12 = 3,590.80 : x
  2. Step 2: Convert to fraction form
    12,358.24/18,534.12 = 3,590.80/x
  3. Step 3: Cross multiply
    12,358.24x = 18,534.12 × 3,590.80
  4. Step 4: Simplify right side
    12,358.24x = 66,552,318.10
  5. Step 5: Solve for x
    x = 66,552,318.10/12,358.24
  6. Step 6: Final answer
    x = 5,385.26

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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.