Home / 19,191.88-28,746.15-9,310.38

Finding the Fourth Proportional to 19,191.88, 28,746.15 and 9,310.38

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Solution

The fourth proportional to 19,191.88, 28,746.15 and 9,310.38 is: 13,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.88 : 28,746.15 = 9,310.38 : x
  2. Step 2: Convert to fraction form
    19,191.88/28,746.15 = 9,310.38/x
  3. Step 3: Cross multiply
    19,191.88x = 28,746.15 × 9,310.38
  4. Step 4: Simplify right side
    19,191.88x = 267,637,580.04
  5. Step 5: Solve for x
    x = 267,637,580.04/19,191.88
  6. Step 6: Final answer
    x = 13,945.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.