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Finding the Fourth Proportional to 8,648.90, 12,974.06 and 6,337.66

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Solution

The fourth proportional to 8,648.90, 12,974.06 and 6,337.66 is: 9,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.90 : 12,974.06 = 6,337.66 : x
  2. Step 2: Convert to fraction form
    8,648.90/12,974.06 = 6,337.66/x
  3. Step 3: Cross multiply
    8,648.90x = 12,974.06 × 6,337.66
  4. Step 4: Simplify right side
    8,648.90x = 82,225,164.51
  5. Step 5: Solve for x
    x = 82,225,164.51/8,648.90
  6. Step 6: Final answer
    x = 9,507.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.