Home / 14,047.66-19,385.40-7,759.90

Finding the Fourth Proportional to 14,047.66, 19,385.40 and 7,759.90

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Solution

The fourth proportional to 14,047.66, 19,385.40 and 7,759.90 is: 10,708.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.66 : 19,385.40 = 7,759.90 : x
  2. Step 2: Convert to fraction form
    14,047.66/19,385.40 = 7,759.90/x
  3. Step 3: Cross multiply
    14,047.66x = 19,385.40 × 7,759.90
  4. Step 4: Simplify right side
    14,047.66x = 150,428,765.46
  5. Step 5: Solve for x
    x = 150,428,765.46/14,047.66
  6. Step 6: Final answer
    x = 10,708.46

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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.