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Finding the Fourth Proportional to 8,398.06, 12,599.40 and 6,648.89

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Solution

The fourth proportional to 8,398.06, 12,599.40 and 6,648.89 is: 9,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.06 : 12,599.40 = 6,648.89 : x
  2. Step 2: Convert to fraction form
    8,398.06/12,599.40 = 6,648.89/x
  3. Step 3: Cross multiply
    8,398.06x = 12,599.40 × 6,648.89
  4. Step 4: Simplify right side
    8,398.06x = 83,772,008.92
  5. Step 5: Solve for x
    x = 83,772,008.92/8,398.06
  6. Step 6: Final answer
    x = 9,975.16

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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.