Home / 8,897.56-12,277.92-5,120.53

Finding the Fourth Proportional to 8,897.56, 12,277.92 and 5,120.53

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Solution

The fourth proportional to 8,897.56, 12,277.92 and 5,120.53 is: 7,065.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.56 : 12,277.92 = 5,120.53 : x
  2. Step 2: Convert to fraction form
    8,897.56/12,277.92 = 5,120.53/x
  3. Step 3: Cross multiply
    8,897.56x = 12,277.92 × 5,120.53
  4. Step 4: Simplify right side
    8,897.56x = 62,869,457.70
  5. Step 5: Solve for x
    x = 62,869,457.70/8,897.56
  6. Step 6: Final answer
    x = 7,065.92

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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.