Home / 14,280.11-21,425.23-6,381.90

Finding the Fourth Proportional to 14,280.11, 21,425.23 and 6,381.90

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Solution

The fourth proportional to 14,280.11, 21,425.23 and 6,381.90 is: 9,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.11 : 21,425.23 = 6,381.90 : x
  2. Step 2: Convert to fraction form
    14,280.11/21,425.23 = 6,381.90/x
  3. Step 3: Cross multiply
    14,280.11x = 21,425.23 × 6,381.90
  4. Step 4: Simplify right side
    14,280.11x = 136,733,675.34
  5. Step 5: Solve for x
    x = 136,733,675.34/14,280.11
  6. Step 6: Final answer
    x = 9,575.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.