Home / 14,711.36-20,301.18-8,422.52

Finding the Fourth Proportional to 14,711.36, 20,301.18 and 8,422.52

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Solution

The fourth proportional to 14,711.36, 20,301.18 and 8,422.52 is: 11,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,711.36 : 20,301.18 = 8,422.52 : x
  2. Step 2: Convert to fraction form
    14,711.36/20,301.18 = 8,422.52/x
  3. Step 3: Cross multiply
    14,711.36x = 20,301.18 × 8,422.52
  4. Step 4: Simplify right side
    14,711.36x = 170,987,094.57
  5. Step 5: Solve for x
    x = 170,987,094.57/14,711.36
  6. Step 6: Final answer
    x = 11,622.79

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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.