Home / 14,877.75-20,531.30-8,253.75

Finding the Fourth Proportional to 14,877.75, 20,531.30 and 8,253.75

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Solution

The fourth proportional to 14,877.75, 20,531.30 and 8,253.75 is: 11,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.75 : 20,531.30 = 8,253.75 : x
  2. Step 2: Convert to fraction form
    14,877.75/20,531.30 = 8,253.75/x
  3. Step 3: Cross multiply
    14,877.75x = 20,531.30 × 8,253.75
  4. Step 4: Simplify right side
    14,877.75x = 169,460,176.11
  5. Step 5: Solve for x
    x = 169,460,176.11/14,877.75
  6. Step 6: Final answer
    x = 11,390.18

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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.