Home / 13,630.79-20,446.19-7,513.67

Finding the Fourth Proportional to 13,630.79, 20,446.19 and 7,513.67

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Solution

The fourth proportional to 13,630.79, 20,446.19 and 7,513.67 is: 11,270.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.79 : 20,446.19 = 7,513.67 : x
  2. Step 2: Convert to fraction form
    13,630.79/20,446.19 = 7,513.67/x
  3. Step 3: Cross multiply
    13,630.79x = 20,446.19 × 7,513.67
  4. Step 4: Simplify right side
    13,630.79x = 153,625,924.42
  5. Step 5: Solve for x
    x = 153,625,924.42/13,630.79
  6. Step 6: Final answer
    x = 11,270.51

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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.