Home / 8,320.17-12,475.09-2,772.08

Finding the Fourth Proportional to 8,320.17, 12,475.09 and 2,772.08

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Solution

The fourth proportional to 8,320.17, 12,475.09 and 2,772.08 is: 4,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.17 : 12,475.09 = 2,772.08 : x
  2. Step 2: Convert to fraction form
    8,320.17/12,475.09 = 2,772.08/x
  3. Step 3: Cross multiply
    8,320.17x = 12,475.09 × 2,772.08
  4. Step 4: Simplify right side
    8,320.17x = 34,581,947.49
  5. Step 5: Solve for x
    x = 34,581,947.49/8,320.17
  6. Step 6: Final answer
    x = 4,156.40

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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.