Home / 15,414.57-21,269.95-8,608.67

Finding the Fourth Proportional to 15,414.57, 21,269.95 and 8,608.67

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Solution

The fourth proportional to 15,414.57, 21,269.95 and 8,608.67 is: 11,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.57 : 21,269.95 = 8,608.67 : x
  2. Step 2: Convert to fraction form
    15,414.57/21,269.95 = 8,608.67/x
  3. Step 3: Cross multiply
    15,414.57x = 21,269.95 × 8,608.67
  4. Step 4: Simplify right side
    15,414.57x = 183,105,980.47
  5. Step 5: Solve for x
    x = 183,105,980.47/15,414.57
  6. Step 6: Final answer
    x = 11,878.76

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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.