Home / 15,894.04-21,932.76-8,820.46

Finding the Fourth Proportional to 15,894.04, 21,932.76 and 8,820.46

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Solution

The fourth proportional to 15,894.04, 21,932.76 and 8,820.46 is: 12,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,894.04 : 21,932.76 = 8,820.46 : x
  2. Step 2: Convert to fraction form
    15,894.04/21,932.76 = 8,820.46/x
  3. Step 3: Cross multiply
    15,894.04x = 21,932.76 × 8,820.46
  4. Step 4: Simplify right side
    15,894.04x = 193,457,032.27
  5. Step 5: Solve for x
    x = 193,457,032.27/15,894.04
  6. Step 6: Final answer
    x = 12,171.67

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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.