Home / 14,705.25-20,309.87-9,691.70

Finding the Fourth Proportional to 14,705.25, 20,309.87 and 9,691.70

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Solution

The fourth proportional to 14,705.25, 20,309.87 and 9,691.70 is: 13,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,705.25 : 20,309.87 = 9,691.70 : x
  2. Step 2: Convert to fraction form
    14,705.25/20,309.87 = 9,691.70/x
  3. Step 3: Cross multiply
    14,705.25x = 20,309.87 × 9,691.70
  4. Step 4: Simplify right side
    14,705.25x = 196,837,204.00
  5. Step 5: Solve for x
    x = 196,837,204.00/14,705.25
  6. Step 6: Final answer
    x = 13,385.51

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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.