Home / 8,723.90-12,037.35-5,187.98

Finding the Fourth Proportional to 8,723.90, 12,037.35 and 5,187.98

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Solution

The fourth proportional to 8,723.90, 12,037.35 and 5,187.98 is: 7,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.90 : 12,037.35 = 5,187.98 : x
  2. Step 2: Convert to fraction form
    8,723.90/12,037.35 = 5,187.98/x
  3. Step 3: Cross multiply
    8,723.90x = 12,037.35 × 5,187.98
  4. Step 4: Simplify right side
    8,723.90x = 62,449,531.05
  5. Step 5: Solve for x
    x = 62,449,531.05/8,723.90
  6. Step 6: Final answer
    x = 7,158.44

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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.