Home / 14,357.27-19,808.30-8,689.87

Finding the Fourth Proportional to 14,357.27, 19,808.30 and 8,689.87

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Solution

The fourth proportional to 14,357.27, 19,808.30 and 8,689.87 is: 11,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,357.27 : 19,808.30 = 8,689.87 : x
  2. Step 2: Convert to fraction form
    14,357.27/19,808.30 = 8,689.87/x
  3. Step 3: Cross multiply
    14,357.27x = 19,808.30 × 8,689.87
  4. Step 4: Simplify right side
    14,357.27x = 172,131,438.10
  5. Step 5: Solve for x
    x = 172,131,438.10/14,357.27
  6. Step 6: Final answer
    x = 11,989.15

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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.