Home / 8,680.50-11,979.03-4,701.60

Finding the Fourth Proportional to 8,680.50, 11,979.03 and 4,701.60

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Solution

The fourth proportional to 8,680.50, 11,979.03 and 4,701.60 is: 6,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.50 : 11,979.03 = 4,701.60 : x
  2. Step 2: Convert to fraction form
    8,680.50/11,979.03 = 4,701.60/x
  3. Step 3: Cross multiply
    8,680.50x = 11,979.03 × 4,701.60
  4. Step 4: Simplify right side
    8,680.50x = 56,320,607.45
  5. Step 5: Solve for x
    x = 56,320,607.45/8,680.50
  6. Step 6: Final answer
    x = 6,488.18

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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.