Home / 13,649.27-20,478.91-5,753.77

Finding the Fourth Proportional to 13,649.27, 20,478.91 and 5,753.77

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Solution

The fourth proportional to 13,649.27, 20,478.91 and 5,753.77 is: 8,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.27 : 20,478.91 = 5,753.77 : x
  2. Step 2: Convert to fraction form
    13,649.27/20,478.91 = 5,753.77/x
  3. Step 3: Cross multiply
    13,649.27x = 20,478.91 × 5,753.77
  4. Step 4: Simplify right side
    13,649.27x = 117,830,923.61
  5. Step 5: Solve for x
    x = 117,830,923.61/13,649.27
  6. Step 6: Final answer
    x = 8,632.77

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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.