Home / 8,989.56-12,405.15-5,010.66

Finding the Fourth Proportional to 8,989.56, 12,405.15 and 5,010.66

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Solution

The fourth proportional to 8,989.56, 12,405.15 and 5,010.66 is: 6,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.56 : 12,405.15 = 5,010.66 : x
  2. Step 2: Convert to fraction form
    8,989.56/12,405.15 = 5,010.66/x
  3. Step 3: Cross multiply
    8,989.56x = 12,405.15 × 5,010.66
  4. Step 4: Simplify right side
    8,989.56x = 62,157,988.90
  5. Step 5: Solve for x
    x = 62,157,988.90/8,989.56
  6. Step 6: Final answer
    x = 6,914.46

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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.