Home / 19,160.13-26,441.60-11,987.75

Finding the Fourth Proportional to 19,160.13, 26,441.60 and 11,987.75

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Solution

The fourth proportional to 19,160.13, 26,441.60 and 11,987.75 is: 16,543.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,160.13 : 26,441.60 = 11,987.75 : x
  2. Step 2: Convert to fraction form
    19,160.13/26,441.60 = 11,987.75/x
  3. Step 3: Cross multiply
    19,160.13x = 26,441.60 × 11,987.75
  4. Step 4: Simplify right side
    19,160.13x = 316,975,098.25
  5. Step 5: Solve for x
    x = 316,975,098.25/19,160.13
  6. Step 6: Final answer
    x = 16,543.47

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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.