Home / 10,341.06-15,520.78-6,821.22

Finding the Fourth Proportional to 10,341.06, 15,520.78 and 6,821.22

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Solution

The fourth proportional to 10,341.06, 15,520.78 and 6,821.22 is: 10,237.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,341.06 : 15,520.78 = 6,821.22 : x
  2. Step 2: Convert to fraction form
    10,341.06/15,520.78 = 6,821.22/x
  3. Step 3: Cross multiply
    10,341.06x = 15,520.78 × 6,821.22
  4. Step 4: Simplify right side
    10,341.06x = 105,870,654.95
  5. Step 5: Solve for x
    x = 105,870,654.95/10,341.06
  6. Step 6: Final answer
    x = 10,237.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.