Home / 12,765.60-19,124.16-9,974.76

Finding the Fourth Proportional to 12,765.60, 19,124.16 and 9,974.76

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Solution

The fourth proportional to 12,765.60, 19,124.16 and 9,974.76 is: 14,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.60 : 19,124.16 = 9,974.76 : x
  2. Step 2: Convert to fraction form
    12,765.60/19,124.16 = 9,974.76/x
  3. Step 3: Cross multiply
    12,765.60x = 19,124.16 × 9,974.76
  4. Step 4: Simplify right side
    12,765.60x = 190,758,906.20
  5. Step 5: Solve for x
    x = 190,758,906.20/12,765.60
  6. Step 6: Final answer
    x = 14,943.20

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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.