Home / 13,055.35-18,016.19-7,391.18

Finding the Fourth Proportional to 13,055.35, 18,016.19 and 7,391.18

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Solution

The fourth proportional to 13,055.35, 18,016.19 and 7,391.18 is: 10,199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.35 : 18,016.19 = 7,391.18 : x
  2. Step 2: Convert to fraction form
    13,055.35/18,016.19 = 7,391.18/x
  3. Step 3: Cross multiply
    13,055.35x = 18,016.19 × 7,391.18
  4. Step 4: Simplify right side
    13,055.35x = 133,160,903.20
  5. Step 5: Solve for x
    x = 133,160,903.20/13,055.35
  6. Step 6: Final answer
    x = 10,199.72

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Half scale
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Double scale
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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.