Home / 14,725.95-20,320.29-8,351.25

Finding the Fourth Proportional to 14,725.95, 20,320.29 and 8,351.25

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Solution

The fourth proportional to 14,725.95, 20,320.29 and 8,351.25 is: 11,523.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,725.95 : 20,320.29 = 8,351.25 : x
  2. Step 2: Convert to fraction form
    14,725.95/20,320.29 = 8,351.25/x
  3. Step 3: Cross multiply
    14,725.95x = 20,320.29 × 8,351.25
  4. Step 4: Simplify right side
    14,725.95x = 169,699,821.86
  5. Step 5: Solve for x
    x = 169,699,821.86/14,725.95
  6. Step 6: Final answer
    x = 11,523.86

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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.