Home / 11,458.47-15,812.96-6,422.46

Finding the Fourth Proportional to 11,458.47, 15,812.96 and 6,422.46

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Solution

The fourth proportional to 11,458.47, 15,812.96 and 6,422.46 is: 8,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.47 : 15,812.96 = 6,422.46 : x
  2. Step 2: Convert to fraction form
    11,458.47/15,812.96 = 6,422.46/x
  3. Step 3: Cross multiply
    11,458.47x = 15,812.96 × 6,422.46
  4. Step 4: Simplify right side
    11,458.47x = 101,558,070.97
  5. Step 5: Solve for x
    x = 101,558,070.97/11,458.47
  6. Step 6: Final answer
    x = 8,863.14

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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.