Home / 10,236.40-14,125.20-5,759.76

Finding the Fourth Proportional to 10,236.40, 14,125.20 and 5,759.76

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Solution

The fourth proportional to 10,236.40, 14,125.20 and 5,759.76 is: 7,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,236.40 : 14,125.20 = 5,759.76 : x
  2. Step 2: Convert to fraction form
    10,236.40/14,125.20 = 5,759.76/x
  3. Step 3: Cross multiply
    10,236.40x = 14,125.20 × 5,759.76
  4. Step 4: Simplify right side
    10,236.40x = 81,357,761.95
  5. Step 5: Solve for x
    x = 81,357,761.95/10,236.40
  6. Step 6: Final answer
    x = 7,947.89

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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.