Home / 13,441.75-18,541.91-11,160.18

Finding the Fourth Proportional to 13,441.75, 18,541.91 and 11,160.18

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Solution

The fourth proportional to 13,441.75, 18,541.91 and 11,160.18 is: 15,394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.75 : 18,541.91 = 11,160.18 : x
  2. Step 2: Convert to fraction form
    13,441.75/18,541.91 = 11,160.18/x
  3. Step 3: Cross multiply
    13,441.75x = 18,541.91 × 11,160.18
  4. Step 4: Simplify right side
    13,441.75x = 206,931,081.04
  5. Step 5: Solve for x
    x = 206,931,081.04/13,441.75
  6. Step 6: Final answer
    x = 15,394.66

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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.