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Finding the Fourth Proportional to 15,144.48, 20,887.48 and 9,841

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Solution

The fourth proportional to 15,144.48, 20,887.48 and 9,841 is: 13,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.48 : 20,887.48 = 9,841 : x
  2. Step 2: Convert to fraction form
    15,144.48/20,887.48 = 9,841/x
  3. Step 3: Cross multiply
    15,144.48x = 20,887.48 × 9,841
  4. Step 4: Simplify right side
    15,144.48x = 205,553,690.68
  5. Step 5: Solve for x
    x = 205,553,690.68/15,144.48
  6. Step 6: Final answer
    x = 13,572.85

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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.