Home / 8,680.61-11,979.23-4,701.74

Finding the Fourth Proportional to 8,680.61, 11,979.23 and 4,701.74

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Solution

The fourth proportional to 8,680.61, 11,979.23 and 4,701.74 is: 6,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.61 : 11,979.23 = 4,701.74 : x
  2. Step 2: Convert to fraction form
    8,680.61/11,979.23 = 4,701.74/x
  3. Step 3: Cross multiply
    8,680.61x = 11,979.23 × 4,701.74
  4. Step 4: Simplify right side
    8,680.61x = 56,323,141.46
  5. Step 5: Solve for x
    x = 56,323,141.46/8,680.61
  6. Step 6: Final answer
    x = 6,488.38

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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.