Home / 15,138.56-22,710.88-5,275.19

Finding the Fourth Proportional to 15,138.56, 22,710.88 and 5,275.19

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Solution

The fourth proportional to 15,138.56, 22,710.88 and 5,275.19 is: 7,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.56 : 22,710.88 = 5,275.19 : x
  2. Step 2: Convert to fraction form
    15,138.56/22,710.88 = 5,275.19/x
  3. Step 3: Cross multiply
    15,138.56x = 22,710.88 × 5,275.19
  4. Step 4: Simplify right side
    15,138.56x = 119,804,207.07
  5. Step 5: Solve for x
    x = 119,804,207.07/15,138.56
  6. Step 6: Final answer
    x = 7,913.84

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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.