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Finding the Fourth Proportional to 18,478.52, 27,717.76 and 4,627.52

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Solution

The fourth proportional to 18,478.52, 27,717.76 and 4,627.52 is: 6,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.52 : 27,717.76 = 4,627.52 : x
  2. Step 2: Convert to fraction form
    18,478.52/27,717.76 = 4,627.52/x
  3. Step 3: Cross multiply
    18,478.52x = 27,717.76 × 4,627.52
  4. Step 4: Simplify right side
    18,478.52x = 128,264,488.76
  5. Step 5: Solve for x
    x = 128,264,488.76/18,478.52
  6. Step 6: Final answer
    x = 6,941.27

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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.