Home / 15,519.10-23,279.09-4,990.19

Finding the Fourth Proportional to 15,519.10, 23,279.09 and 4,990.19

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Solution

The fourth proportional to 15,519.10, 23,279.09 and 4,990.19 is: 7,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519.10 : 23,279.09 = 4,990.19 : x
  2. Step 2: Convert to fraction form
    15,519.10/23,279.09 = 4,990.19/x
  3. Step 3: Cross multiply
    15,519.10x = 23,279.09 × 4,990.19
  4. Step 4: Simplify right side
    15,519.10x = 116,167,032.71
  5. Step 5: Solve for x
    x = 116,167,032.71/15,519.10
  6. Step 6: Final answer
    x = 7,485.42

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.