Home / 8,717.18-12,029.31-4,940.12

Finding the Fourth Proportional to 8,717.18, 12,029.31 and 4,940.12

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Solution

The fourth proportional to 8,717.18, 12,029.31 and 4,940.12 is: 6,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.18 : 12,029.31 = 4,940.12 : x
  2. Step 2: Convert to fraction form
    8,717.18/12,029.31 = 4,940.12/x
  3. Step 3: Cross multiply
    8,717.18x = 12,029.31 × 4,940.12
  4. Step 4: Simplify right side
    8,717.18x = 59,426,264.99
  5. Step 5: Solve for x
    x = 59,426,264.99/8,717.18
  6. Step 6: Final answer
    x = 6,817.14

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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.