Home / 13,325.62-18,384.77-8,545.19

Finding the Fourth Proportional to 13,325.62, 18,384.77 and 8,545.19

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Solution

The fourth proportional to 13,325.62, 18,384.77 and 8,545.19 is: 11,789.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.62 : 18,384.77 = 8,545.19 : x
  2. Step 2: Convert to fraction form
    13,325.62/18,384.77 = 8,545.19/x
  3. Step 3: Cross multiply
    13,325.62x = 18,384.77 × 8,545.19
  4. Step 4: Simplify right side
    13,325.62x = 157,101,332.13
  5. Step 5: Solve for x
    x = 157,101,332.13/13,325.62
  6. Step 6: Final answer
    x = 11,789.42

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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.