Home / 13,941.76-19,248.32-9,691.48

Finding the Fourth Proportional to 13,941.76, 19,248.32 and 9,691.48

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Solution

The fourth proportional to 13,941.76, 19,248.32 and 9,691.48 is: 13,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.76 : 19,248.32 = 9,691.48 : x
  2. Step 2: Convert to fraction form
    13,941.76/19,248.32 = 9,691.48/x
  3. Step 3: Cross multiply
    13,941.76x = 19,248.32 × 9,691.48
  4. Step 4: Simplify right side
    13,941.76x = 186,544,708.31
  5. Step 5: Solve for x
    x = 186,544,708.31/13,941.76
  6. Step 6: Final answer
    x = 13,380.28

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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.