Home / 13,307.95-18,353.68-8,001.78

Finding the Fourth Proportional to 13,307.95, 18,353.68 and 8,001.78

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Solution

The fourth proportional to 13,307.95, 18,353.68 and 8,001.78 is: 11,035.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.95 : 18,353.68 = 8,001.78 : x
  2. Step 2: Convert to fraction form
    13,307.95/18,353.68 = 8,001.78/x
  3. Step 3: Cross multiply
    13,307.95x = 18,353.68 × 8,001.78
  4. Step 4: Simplify right side
    13,307.95x = 146,862,109.55
  5. Step 5: Solve for x
    x = 146,862,109.55/13,307.95
  6. Step 6: Final answer
    x = 11,035.67

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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.