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Finding the Fourth Proportional to 8,488.71, 11,714.40 and 4,762.71

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Solution

The fourth proportional to 8,488.71, 11,714.40 and 4,762.71 is: 6,572.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.71 : 11,714.40 = 4,762.71 : x
  2. Step 2: Convert to fraction form
    8,488.71/11,714.40 = 4,762.71/x
  3. Step 3: Cross multiply
    8,488.71x = 11,714.40 × 4,762.71
  4. Step 4: Simplify right side
    8,488.71x = 55,792,290.02
  5. Step 5: Solve for x
    x = 55,792,290.02/8,488.71
  6. Step 6: Final answer
    x = 6,572.53

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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.