Home / 8,729.84-12,051.30-5,587.85

Finding the Fourth Proportional to 8,729.84, 12,051.30 and 5,587.85

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Solution

The fourth proportional to 8,729.84, 12,051.30 and 5,587.85 is: 7,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.84 : 12,051.30 = 5,587.85 : x
  2. Step 2: Convert to fraction form
    8,729.84/12,051.30 = 5,587.85/x
  3. Step 3: Cross multiply
    8,729.84x = 12,051.30 × 5,587.85
  4. Step 4: Simplify right side
    8,729.84x = 67,340,796.45
  5. Step 5: Solve for x
    x = 67,340,796.45/8,729.84
  6. Step 6: Final answer
    x = 7,713.87

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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.