Home / 8,699.18-12,012.84-5,560.83

Finding the Fourth Proportional to 8,699.18, 12,012.84 and 5,560.83

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Solution

The fourth proportional to 8,699.18, 12,012.84 and 5,560.83 is: 7,679.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.18 : 12,012.84 = 5,560.83 : x
  2. Step 2: Convert to fraction form
    8,699.18/12,012.84 = 5,560.83/x
  3. Step 3: Cross multiply
    8,699.18x = 12,012.84 × 5,560.83
  4. Step 4: Simplify right side
    8,699.18x = 66,801,333.25
  5. Step 5: Solve for x
    x = 66,801,333.25/8,699.18
  6. Step 6: Final answer
    x = 7,679.04

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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.