Home / 15,829.40-21,844.19-8,755.67

Finding the Fourth Proportional to 15,829.40, 21,844.19 and 8,755.67

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Solution

The fourth proportional to 15,829.40, 21,844.19 and 8,755.67 is: 12,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.40 : 21,844.19 = 8,755.67 : x
  2. Step 2: Convert to fraction form
    15,829.40/21,844.19 = 8,755.67/x
  3. Step 3: Cross multiply
    15,829.40x = 21,844.19 × 8,755.67
  4. Step 4: Simplify right side
    15,829.40x = 191,260,366.06
  5. Step 5: Solve for x
    x = 191,260,366.06/15,829.40
  6. Step 6: Final answer
    x = 12,082.61

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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.