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Finding the Fourth Proportional to 8,671.51, 11,966.62 and 4,895.90

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Solution

The fourth proportional to 8,671.51, 11,966.62 and 4,895.90 is: 6,756.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.51 : 11,966.62 = 4,895.90 : x
  2. Step 2: Convert to fraction form
    8,671.51/11,966.62 = 4,895.90/x
  3. Step 3: Cross multiply
    8,671.51x = 11,966.62 × 4,895.90
  4. Step 4: Simplify right side
    8,671.51x = 58,587,374.86
  5. Step 5: Solve for x
    x = 58,587,374.86/8,671.51
  6. Step 6: Final answer
    x = 6,756.31

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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.