Home / 13,275.90-19,925.19-7,040.25

Finding the Fourth Proportional to 13,275.90, 19,925.19 and 7,040.25

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Solution

The fourth proportional to 13,275.90, 19,925.19 and 7,040.25 is: 10,566.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.90 : 19,925.19 = 7,040.25 : x
  2. Step 2: Convert to fraction form
    13,275.90/19,925.19 = 7,040.25/x
  3. Step 3: Cross multiply
    13,275.90x = 19,925.19 × 7,040.25
  4. Step 4: Simplify right side
    13,275.90x = 140,278,318.90
  5. Step 5: Solve for x
    x = 140,278,318.90/13,275.90
  6. Step 6: Final answer
    x = 10,566.39

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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.