Home / 15,518.28-23,277.42-12,771.18

Finding the Fourth Proportional to 15,518.28, 23,277.42 and 12,771.18

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Solution

The fourth proportional to 15,518.28, 23,277.42 and 12,771.18 is: 19,156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518.28 : 23,277.42 = 12,771.18 : x
  2. Step 2: Convert to fraction form
    15,518.28/23,277.42 = 12,771.18/x
  3. Step 3: Cross multiply
    15,518.28x = 23,277.42 × 12,771.18
  4. Step 4: Simplify right side
    15,518.28x = 297,280,120.76
  5. Step 5: Solve for x
    x = 297,280,120.76/15,518.28
  6. Step 6: Final answer
    x = 19,156.77

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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.