Home / 14,686.85-20,267.97-8,635.47

Finding the Fourth Proportional to 14,686.85, 20,267.97 and 8,635.47

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Solution

The fourth proportional to 14,686.85, 20,267.97 and 8,635.47 is: 11,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.85 : 20,267.97 = 8,635.47 : x
  2. Step 2: Convert to fraction form
    14,686.85/20,267.97 = 8,635.47/x
  3. Step 3: Cross multiply
    14,686.85x = 20,267.97 × 8,635.47
  4. Step 4: Simplify right side
    14,686.85x = 175,023,444.09
  5. Step 5: Solve for x
    x = 175,023,444.09/14,686.85
  6. Step 6: Final answer
    x = 11,917.02

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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.