Home / 8,991.18-12,407.37-5,011.53

Finding the Fourth Proportional to 8,991.18, 12,407.37 and 5,011.53

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Solution

The fourth proportional to 8,991.18, 12,407.37 and 5,011.53 is: 6,915.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.18 : 12,407.37 = 5,011.53 : x
  2. Step 2: Convert to fraction form
    8,991.18/12,407.37 = 5,011.53/x
  3. Step 3: Cross multiply
    8,991.18x = 12,407.37 × 5,011.53
  4. Step 4: Simplify right side
    8,991.18x = 62,179,906.98
  5. Step 5: Solve for x
    x = 62,179,906.98/8,991.18
  6. Step 6: Final answer
    x = 6,915.66

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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.