Home / 8,989.12-12,405.18-5,010.60

Finding the Fourth Proportional to 8,989.12, 12,405.18 and 5,010.60

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Solution

The fourth proportional to 8,989.12, 12,405.18 and 5,010.60 is: 6,914.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.12 : 12,405.18 = 5,010.60 : x
  2. Step 2: Convert to fraction form
    8,989.12/12,405.18 = 5,010.60/x
  3. Step 3: Cross multiply
    8,989.12x = 12,405.18 × 5,010.60
  4. Step 4: Simplify right side
    8,989.12x = 62,157,394.91
  5. Step 5: Solve for x
    x = 62,157,394.91/8,989.12
  6. Step 6: Final answer
    x = 6,914.74

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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.