Home / 11,409.55-15,740.49-6,932.58

Finding the Fourth Proportional to 11,409.55, 15,740.49 and 6,932.58

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Solution

The fourth proportional to 11,409.55, 15,740.49 and 6,932.58 is: 9,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.55 : 15,740.49 = 6,932.58 : x
  2. Step 2: Convert to fraction form
    11,409.55/15,740.49 = 6,932.58/x
  3. Step 3: Cross multiply
    11,409.55x = 15,740.49 × 6,932.58
  4. Step 4: Simplify right side
    11,409.55x = 109,122,206.16
  5. Step 5: Solve for x
    x = 109,122,206.16/11,409.55
  6. Step 6: Final answer
    x = 9,564.11

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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.