Home / 13,279.08-18,325.46-7,310.19

Finding the Fourth Proportional to 13,279.08, 18,325.46 and 7,310.19

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Solution

The fourth proportional to 13,279.08, 18,325.46 and 7,310.19 is: 10,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.08 : 18,325.46 = 7,310.19 : x
  2. Step 2: Convert to fraction form
    13,279.08/18,325.46 = 7,310.19/x
  3. Step 3: Cross multiply
    13,279.08x = 18,325.46 × 7,310.19
  4. Step 4: Simplify right side
    13,279.08x = 133,962,594.44
  5. Step 5: Solve for x
    x = 133,962,594.44/13,279.08
  6. Step 6: Final answer
    x = 10,088.24

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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.