Home / 13,877.54-19,151.22-7,909.08

Finding the Fourth Proportional to 13,877.54, 19,151.22 and 7,909.08

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Solution

The fourth proportional to 13,877.54, 19,151.22 and 7,909.08 is: 10,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.54 : 19,151.22 = 7,909.08 : x
  2. Step 2: Convert to fraction form
    13,877.54/19,151.22 = 7,909.08/x
  3. Step 3: Cross multiply
    13,877.54x = 19,151.22 × 7,909.08
  4. Step 4: Simplify right side
    13,877.54x = 151,468,531.08
  5. Step 5: Solve for x
    x = 151,468,531.08/13,877.54
  6. Step 6: Final answer
    x = 10,914.65

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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.