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Finding the Fourth Proportional to 12,319.61, 17,001.05 and 6,730.61

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Solution

The fourth proportional to 12,319.61, 17,001.05 and 6,730.61 is: 9,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.61 : 17,001.05 = 6,730.61 : x
  2. Step 2: Convert to fraction form
    12,319.61/17,001.05 = 6,730.61/x
  3. Step 3: Cross multiply
    12,319.61x = 17,001.05 × 6,730.61
  4. Step 4: Simplify right side
    12,319.61x = 114,427,318.48
  5. Step 5: Solve for x
    x = 114,427,318.48/12,319.61
  6. Step 6: Final answer
    x = 9,288.23

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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.