Home / 13,040.16-17,995.20-7,374.84

Finding the Fourth Proportional to 13,040.16, 17,995.20 and 7,374.84

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Solution

The fourth proportional to 13,040.16, 17,995.20 and 7,374.84 is: 10,177.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.16 : 17,995.20 = 7,374.84 : x
  2. Step 2: Convert to fraction form
    13,040.16/17,995.20 = 7,374.84/x
  3. Step 3: Cross multiply
    13,040.16x = 17,995.20 × 7,374.84
  4. Step 4: Simplify right side
    13,040.16x = 132,711,720.77
  5. Step 5: Solve for x
    x = 132,711,720.77/13,040.16
  6. Step 6: Final answer
    x = 10,177.15

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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.