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Finding the Fourth Proportional to 8,702.91, 12,024.72 and 7,750.35

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Solution

The fourth proportional to 8,702.91, 12,024.72 and 7,750.35 is: 10,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.91 : 12,024.72 = 7,750.35 : x
  2. Step 2: Convert to fraction form
    8,702.91/12,024.72 = 7,750.35/x
  3. Step 3: Cross multiply
    8,702.91x = 12,024.72 × 7,750.35
  4. Step 4: Simplify right side
    8,702.91x = 93,195,788.65
  5. Step 5: Solve for x
    x = 93,195,788.65/8,702.91
  6. Step 6: Final answer
    x = 10,708.58

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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.