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Finding the Fourth Proportional to 8,490.67, 12,717.42 and 6,018.00

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Solution

The fourth proportional to 8,490.67, 12,717.42 and 6,018.00 is: 9,013.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.67 : 12,717.42 = 6,018.00 : x
  2. Step 2: Convert to fraction form
    8,490.67/12,717.42 = 6,018.00/x
  3. Step 3: Cross multiply
    8,490.67x = 12,717.42 × 6,018.00
  4. Step 4: Simplify right side
    8,490.67x = 76,533,397.15
  5. Step 5: Solve for x
    x = 76,533,397.15/8,490.67
  6. Step 6: Final answer
    x = 9,013.82

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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.