Home / 8,968.52-12,376.60-4,989.70

Finding the Fourth Proportional to 8,968.52, 12,376.60 and 4,989.70

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Solution

The fourth proportional to 8,968.52, 12,376.60 and 4,989.70 is: 6,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.52 : 12,376.60 = 4,989.70 : x
  2. Step 2: Convert to fraction form
    8,968.52/12,376.60 = 4,989.70/x
  3. Step 3: Cross multiply
    8,968.52x = 12,376.60 × 4,989.70
  4. Step 4: Simplify right side
    8,968.52x = 61,755,524.02
  5. Step 5: Solve for x
    x = 61,755,524.02/8,968.52
  6. Step 6: Final answer
    x = 6,885.81

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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.