Home / 7,642.31-11,463.47-2,095.70

Finding the Fourth Proportional to 7,642.31, 11,463.47 and 2,095.70

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Solution

The fourth proportional to 7,642.31, 11,463.47 and 2,095.70 is: 3,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.31 : 11,463.47 = 2,095.70 : x
  2. Step 2: Convert to fraction form
    7,642.31/11,463.47 = 2,095.70/x
  3. Step 3: Cross multiply
    7,642.31x = 11,463.47 × 2,095.70
  4. Step 4: Simplify right side
    7,642.31x = 24,023,978.17
  5. Step 5: Solve for x
    x = 24,023,978.17/7,642.31
  6. Step 6: Final answer
    x = 3,143.55

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1.5x scale

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.