Home / 14,995.25-20,686.55-9,691.77

Finding the Fourth Proportional to 14,995.25, 20,686.55 and 9,691.77

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Solution

The fourth proportional to 14,995.25, 20,686.55 and 9,691.77 is: 13,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.25 : 20,686.55 = 9,691.77 : x
  2. Step 2: Convert to fraction form
    14,995.25/20,686.55 = 9,691.77/x
  3. Step 3: Cross multiply
    14,995.25x = 20,686.55 × 9,691.77
  4. Step 4: Simplify right side
    14,995.25x = 200,489,284.69
  5. Step 5: Solve for x
    x = 200,489,284.69/14,995.25
  6. Step 6: Final answer
    x = 13,370.19

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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.