Home / 13,513.85-18,649.11-7,545.52

Finding the Fourth Proportional to 13,513.85, 18,649.11 and 7,545.52

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Solution

The fourth proportional to 13,513.85, 18,649.11 and 7,545.52 is: 10,412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.85 : 18,649.11 = 7,545.52 : x
  2. Step 2: Convert to fraction form
    13,513.85/18,649.11 = 7,545.52/x
  3. Step 3: Cross multiply
    13,513.85x = 18,649.11 × 7,545.52
  4. Step 4: Simplify right side
    13,513.85x = 140,717,185.86
  5. Step 5: Solve for x
    x = 140,717,185.86/13,513.85
  6. Step 6: Final answer
    x = 10,412.81

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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.