Home / 8,579.24-12,868.90-3,031.95

Finding the Fourth Proportional to 8,579.24, 12,868.90 and 3,031.95

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Solution

The fourth proportional to 8,579.24, 12,868.90 and 3,031.95 is: 4,547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.24 : 12,868.90 = 3,031.95 : x
  2. Step 2: Convert to fraction form
    8,579.24/12,868.90 = 3,031.95/x
  3. Step 3: Cross multiply
    8,579.24x = 12,868.90 × 3,031.95
  4. Step 4: Simplify right side
    8,579.24x = 39,017,861.36
  5. Step 5: Solve for x
    x = 39,017,861.36/8,579.24
  6. Step 6: Final answer
    x = 4,547.94

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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.