Home / 9,412.47-12,989.31-5,877.73

Finding the Fourth Proportional to 9,412.47, 12,989.31 and 5,877.73

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Solution

The fourth proportional to 9,412.47, 12,989.31 and 5,877.73 is: 8,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.47 : 12,989.31 = 5,877.73 : x
  2. Step 2: Convert to fraction form
    9,412.47/12,989.31 = 5,877.73/x
  3. Step 3: Cross multiply
    9,412.47x = 12,989.31 × 5,877.73
  4. Step 4: Simplify right side
    9,412.47x = 76,347,657.07
  5. Step 5: Solve for x
    x = 76,347,657.07/9,412.47
  6. Step 6: Final answer
    x = 8,111.33

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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.