Home / 8,989.89-12,406.41-5,010.97

Finding the Fourth Proportional to 8,989.89, 12,406.41 and 5,010.97

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Solution

The fourth proportional to 8,989.89, 12,406.41 and 5,010.97 is: 6,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.89 : 12,406.41 = 5,010.97 : x
  2. Step 2: Convert to fraction form
    8,989.89/12,406.41 = 5,010.97/x
  3. Step 3: Cross multiply
    8,989.89x = 12,406.41 × 5,010.97
  4. Step 4: Simplify right side
    8,989.89x = 62,168,148.32
  5. Step 5: Solve for x
    x = 62,168,148.32/8,989.89
  6. Step 6: Final answer
    x = 6,915.34

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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.