Home / 14,854.32-20,498.43-8,139.88

Finding the Fourth Proportional to 14,854.32, 20,498.43 and 8,139.88

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Solution

The fourth proportional to 14,854.32, 20,498.43 and 8,139.88 is: 11,232.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,854.32 : 20,498.43 = 8,139.88 : x
  2. Step 2: Convert to fraction form
    14,854.32/20,498.43 = 8,139.88/x
  3. Step 3: Cross multiply
    14,854.32x = 20,498.43 × 8,139.88
  4. Step 4: Simplify right side
    14,854.32x = 166,854,760.39
  5. Step 5: Solve for x
    x = 166,854,760.39/14,854.32
  6. Step 6: Final answer
    x = 11,232.74

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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.