Home / 14,765.25-20,376.45-8,478.03

Finding the Fourth Proportional to 14,765.25, 20,376.45 and 8,478.03

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Solution

The fourth proportional to 14,765.25, 20,376.45 and 8,478.03 is: 11,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.25 : 20,376.45 = 8,478.03 : x
  2. Step 2: Convert to fraction form
    14,765.25/20,376.45 = 8,478.03/x
  3. Step 3: Cross multiply
    14,765.25x = 20,376.45 × 8,478.03
  4. Step 4: Simplify right side
    14,765.25x = 172,752,154.39
  5. Step 5: Solve for x
    x = 172,752,154.39/14,765.25
  6. Step 6: Final answer
    x = 11,699.91

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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.