Home / 8,360.87-12,541.29-2,121.35

Finding the Fourth Proportional to 8,360.87, 12,541.29 and 2,121.35

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Solution

The fourth proportional to 8,360.87, 12,541.29 and 2,121.35 is: 3,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.87 : 12,541.29 = 2,121.35 : x
  2. Step 2: Convert to fraction form
    8,360.87/12,541.29 = 2,121.35/x
  3. Step 3: Cross multiply
    8,360.87x = 12,541.29 × 2,121.35
  4. Step 4: Simplify right side
    8,360.87x = 26,604,402.84
  5. Step 5: Solve for x
    x = 26,604,402.84/8,360.87
  6. Step 6: Final answer
    x = 3,182.02

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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.