Home / 14,180.25-19,565.40-11,920.18

Finding the Fourth Proportional to 14,180.25, 19,565.40 and 11,920.18

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Solution

The fourth proportional to 14,180.25, 19,565.40 and 11,920.18 is: 16,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.25 : 19,565.40 = 11,920.18 : x
  2. Step 2: Convert to fraction form
    14,180.25/19,565.40 = 11,920.18/x
  3. Step 3: Cross multiply
    14,180.25x = 19,565.40 × 11,920.18
  4. Step 4: Simplify right side
    14,180.25x = 233,223,030.17
  5. Step 5: Solve for x
    x = 233,223,030.17/14,180.25
  6. Step 6: Final answer
    x = 16,447.04

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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.