Home / 14,718.31-20,310.90-8,003.80

Finding the Fourth Proportional to 14,718.31, 20,310.90 and 8,003.80

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Solution

The fourth proportional to 14,718.31, 20,310.90 and 8,003.80 is: 11,045.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.31 : 20,310.90 = 8,003.80 : x
  2. Step 2: Convert to fraction form
    14,718.31/20,310.90 = 8,003.80/x
  3. Step 3: Cross multiply
    14,718.31x = 20,310.90 × 8,003.80
  4. Step 4: Simplify right side
    14,718.31x = 162,564,381.42
  5. Step 5: Solve for x
    x = 162,564,381.42/14,718.31
  6. Step 6: Final answer
    x = 11,045.04

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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.