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Finding the Fourth Proportional to 15,227.79, 22,826.13 and 8,640.06

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Solution

The fourth proportional to 15,227.79, 22,826.13 and 8,640.06 is: 12,951.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.79 : 22,826.13 = 8,640.06 : x
  2. Step 2: Convert to fraction form
    15,227.79/22,826.13 = 8,640.06/x
  3. Step 3: Cross multiply
    15,227.79x = 22,826.13 × 8,640.06
  4. Step 4: Simplify right side
    15,227.79x = 197,219,132.77
  5. Step 5: Solve for x
    x = 197,219,132.77/15,227.79
  6. Step 6: Final answer
    x = 12,951.26

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1.5x scale

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.