Home / 11,661.28-15,980.42-10,540.24

Finding the Fourth Proportional to 11,661.28, 15,980.42 and 10,540.24

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Solution

The fourth proportional to 11,661.28, 15,980.42 and 10,540.24 is: 14,444.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.28 : 15,980.42 = 10,540.24 : x
  2. Step 2: Convert to fraction form
    11,661.28/15,980.42 = 10,540.24/x
  3. Step 3: Cross multiply
    11,661.28x = 15,980.42 × 10,540.24
  4. Step 4: Simplify right side
    11,661.28x = 168,437,462.10
  5. Step 5: Solve for x
    x = 168,437,462.10/11,661.28
  6. Step 6: Final answer
    x = 14,444.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.