Home / 10,969.86-15,132.26-6,722.98

Finding the Fourth Proportional to 10,969.86, 15,132.26 and 6,722.98

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Solution

The fourth proportional to 10,969.86, 15,132.26 and 6,722.98 is: 9,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.86 : 15,132.26 = 6,722.98 : x
  2. Step 2: Convert to fraction form
    10,969.86/15,132.26 = 6,722.98/x
  3. Step 3: Cross multiply
    10,969.86x = 15,132.26 × 6,722.98
  4. Step 4: Simplify right side
    10,969.86x = 101,733,828.80
  5. Step 5: Solve for x
    x = 101,733,828.80/10,969.86
  6. Step 6: Final answer
    x = 9,273.94

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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.