Home / 15,341.76-21,172.29-8,627.67

Finding the Fourth Proportional to 15,341.76, 21,172.29 and 8,627.67

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Solution

The fourth proportional to 15,341.76, 21,172.29 and 8,627.67 is: 11,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.76 : 21,172.29 = 8,627.67 : x
  2. Step 2: Convert to fraction form
    15,341.76/21,172.29 = 8,627.67/x
  3. Step 3: Cross multiply
    15,341.76x = 21,172.29 × 8,627.67
  4. Step 4: Simplify right side
    15,341.76x = 182,667,531.26
  5. Step 5: Solve for x
    x = 182,667,531.26/15,341.76
  6. Step 6: Final answer
    x = 11,906.56

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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.