Home / 10,561.13-15,847.20-7,663.34

Finding the Fourth Proportional to 10,561.13, 15,847.20 and 7,663.34

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Solution

The fourth proportional to 10,561.13, 15,847.20 and 7,663.34 is: 11,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.13 : 15,847.20 = 7,663.34 : x
  2. Step 2: Convert to fraction form
    10,561.13/15,847.20 = 7,663.34/x
  3. Step 3: Cross multiply
    10,561.13x = 15,847.20 × 7,663.34
  4. Step 4: Simplify right side
    10,561.13x = 121,442,481.65
  5. Step 5: Solve for x
    x = 121,442,481.65/10,561.13
  6. Step 6: Final answer
    x = 11,499.00

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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.