Home / 8,643.10-12,966.71-2,799.70

Finding the Fourth Proportional to 8,643.10, 12,966.71 and 2,799.70

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Solution

The fourth proportional to 8,643.10, 12,966.71 and 2,799.70 is: 4,200.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.10 : 12,966.71 = 2,799.70 : x
  2. Step 2: Convert to fraction form
    8,643.10/12,966.71 = 2,799.70/x
  3. Step 3: Cross multiply
    8,643.10x = 12,966.71 × 2,799.70
  4. Step 4: Simplify right side
    8,643.10x = 36,302,897.99
  5. Step 5: Solve for x
    x = 36,302,897.99/8,643.10
  6. Step 6: Final answer
    x = 4,200.22

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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.