Home / 15,520.14-23,279.70-4,990.14

Finding the Fourth Proportional to 15,520.14, 23,279.70 and 4,990.14

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Solution

The fourth proportional to 15,520.14, 23,279.70 and 4,990.14 is: 7,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520.14 : 23,279.70 = 4,990.14 : x
  2. Step 2: Convert to fraction form
    15,520.14/23,279.70 = 4,990.14/x
  3. Step 3: Cross multiply
    15,520.14x = 23,279.70 × 4,990.14
  4. Step 4: Simplify right side
    15,520.14x = 116,168,962.16
  5. Step 5: Solve for x
    x = 116,168,962.16/15,520.14
  6. Step 6: Final answer
    x = 7,485.05

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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.