Home / 13,039.68-17,979.60-9,504.48

Finding the Fourth Proportional to 13,039.68, 17,979.60 and 9,504.48

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Solution

The fourth proportional to 13,039.68, 17,979.60 and 9,504.48 is: 13,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.68 : 17,979.60 = 9,504.48 : x
  2. Step 2: Convert to fraction form
    13,039.68/17,979.60 = 9,504.48/x
  3. Step 3: Cross multiply
    13,039.68x = 17,979.60 × 9,504.48
  4. Step 4: Simplify right side
    13,039.68x = 170,886,748.61
  5. Step 5: Solve for x
    x = 170,886,748.61/13,039.68
  6. Step 6: Final answer
    x = 13,105.13

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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.