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Finding the Fourth Proportional to 8,458.71, 11,672.77 and 4,681.74

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Solution

The fourth proportional to 8,458.71, 11,672.77 and 4,681.74 is: 6,460.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.71 : 11,672.77 = 4,681.74 : x
  2. Step 2: Convert to fraction form
    8,458.71/11,672.77 = 4,681.74/x
  3. Step 3: Cross multiply
    8,458.71x = 11,672.77 × 4,681.74
  4. Step 4: Simplify right side
    8,458.71x = 54,648,874.22
  5. Step 5: Solve for x
    x = 54,648,874.22/8,458.71
  6. Step 6: Final answer
    x = 6,460.66

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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.