Home / 8,828.52-12,180.94-5,686.53

Finding the Fourth Proportional to 8,828.52, 12,180.94 and 5,686.53

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Solution

The fourth proportional to 8,828.52, 12,180.94 and 5,686.53 is: 7,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.52 : 12,180.94 = 5,686.53 : x
  2. Step 2: Convert to fraction form
    8,828.52/12,180.94 = 5,686.53/x
  3. Step 3: Cross multiply
    8,828.52x = 12,180.94 × 5,686.53
  4. Step 4: Simplify right side
    8,828.52x = 69,267,280.74
  5. Step 5: Solve for x
    x = 69,267,280.74/8,828.52
  6. Step 6: Final answer
    x = 7,845.85

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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.