Home / 13,081.04-18,064.68-9,489.68

Finding the Fourth Proportional to 13,081.04, 18,064.68 and 9,489.68

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Solution

The fourth proportional to 13,081.04, 18,064.68 and 9,489.68 is: 13,105.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.04 : 18,064.68 = 9,489.68 : x
  2. Step 2: Convert to fraction form
    13,081.04/18,064.68 = 9,489.68/x
  3. Step 3: Cross multiply
    13,081.04x = 18,064.68 × 9,489.68
  4. Step 4: Simplify right side
    13,081.04x = 171,428,032.50
  5. Step 5: Solve for x
    x = 171,428,032.50/13,081.04
  6. Step 6: Final answer
    x = 13,105.08

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Similar ratio
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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.