Home / 10,999.48-16,471.88-7,697.12

Finding the Fourth Proportional to 10,999.48, 16,471.88 and 7,697.12

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Solution

The fourth proportional to 10,999.48, 16,471.88 and 7,697.12 is: 11,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.48 : 16,471.88 = 7,697.12 : x
  2. Step 2: Convert to fraction form
    10,999.48/16,471.88 = 7,697.12/x
  3. Step 3: Cross multiply
    10,999.48x = 16,471.88 × 7,697.12
  4. Step 4: Simplify right side
    10,999.48x = 126,786,036.99
  5. Step 5: Solve for x
    x = 126,786,036.99/10,999.48
  6. Step 6: Final answer
    x = 11,526.55

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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.