Home / 14,679.59-20,247.27-10,143.86

Finding the Fourth Proportional to 14,679.59, 20,247.27 and 10,143.86

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Solution

The fourth proportional to 14,679.59, 20,247.27 and 10,143.86 is: 13,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.59 : 20,247.27 = 10,143.86 : x
  2. Step 2: Convert to fraction form
    14,679.59/20,247.27 = 10,143.86/x
  3. Step 3: Cross multiply
    14,679.59x = 20,247.27 × 10,143.86
  4. Step 4: Simplify right side
    14,679.59x = 205,385,371.03
  5. Step 5: Solve for x
    x = 205,385,371.03/14,679.59
  6. Step 6: Final answer
    x = 13,991.22

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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.