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Finding the Fourth Proportional to 15,038.17, 20,752.34 and 8,323.39

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Solution

The fourth proportional to 15,038.17, 20,752.34 and 8,323.39 is: 11,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.17 : 20,752.34 = 8,323.39 : x
  2. Step 2: Convert to fraction form
    15,038.17/20,752.34 = 8,323.39/x
  3. Step 3: Cross multiply
    15,038.17x = 20,752.34 × 8,323.39
  4. Step 4: Simplify right side
    15,038.17x = 172,729,819.23
  5. Step 5: Solve for x
    x = 172,729,819.23/15,038.17
  6. Step 6: Final answer
    x = 11,486.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.