Home / 11,367.41-15,689.45-7,639.25

Finding the Fourth Proportional to 11,367.41, 15,689.45 and 7,639.25

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Solution

The fourth proportional to 11,367.41, 15,689.45 and 7,639.25 is: 10,543.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.41 : 15,689.45 = 7,639.25 : x
  2. Step 2: Convert to fraction form
    11,367.41/15,689.45 = 7,639.25/x
  3. Step 3: Cross multiply
    11,367.41x = 15,689.45 × 7,639.25
  4. Step 4: Simplify right side
    11,367.41x = 119,855,592.72
  5. Step 5: Solve for x
    x = 119,855,592.72/11,367.41
  6. Step 6: Final answer
    x = 10,543.79

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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.