Home / 14,987.27-20,687.25-9,677.99

Finding the Fourth Proportional to 14,987.27, 20,687.25 and 9,677.99

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Solution

The fourth proportional to 14,987.27, 20,687.25 and 9,677.99 is: 13,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.27 : 20,687.25 = 9,677.99 : x
  2. Step 2: Convert to fraction form
    14,987.27/20,687.25 = 9,677.99/x
  3. Step 3: Cross multiply
    14,987.27x = 20,687.25 × 9,677.99
  4. Step 4: Simplify right side
    14,987.27x = 200,210,895.19
  5. Step 5: Solve for x
    x = 200,210,895.19/14,987.27
  6. Step 6: Final answer
    x = 13,358.73

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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.