Home / 10,292.53-15,443.40-4,742.90

Finding the Fourth Proportional to 10,292.53, 15,443.40 and 4,742.90

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Solution

The fourth proportional to 10,292.53, 15,443.40 and 4,742.90 is: 7,116.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,292.53 : 15,443.40 = 4,742.90 : x
  2. Step 2: Convert to fraction form
    10,292.53/15,443.40 = 4,742.90/x
  3. Step 3: Cross multiply
    10,292.53x = 15,443.40 × 4,742.90
  4. Step 4: Simplify right side
    10,292.53x = 73,246,400.93
  5. Step 5: Solve for x
    x = 73,246,400.93/10,292.53
  6. Step 6: Final answer
    x = 7,116.47

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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.