Home / 19,929.76-27,512.40-11,544.64

Finding the Fourth Proportional to 19,929.76, 27,512.40 and 11,544.64

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Solution

The fourth proportional to 19,929.76, 27,512.40 and 11,544.64 is: 15,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.76 : 27,512.40 = 11,544.64 : x
  2. Step 2: Convert to fraction form
    19,929.76/27,512.40 = 11,544.64/x
  3. Step 3: Cross multiply
    19,929.76x = 27,512.40 × 11,544.64
  4. Step 4: Simplify right side
    19,929.76x = 317,620,753.54
  5. Step 5: Solve for x
    x = 317,620,753.54/19,929.76
  6. Step 6: Final answer
    x = 15,937.01

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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.