Home / 13,278.02-19,884.17-7,714.49

Finding the Fourth Proportional to 13,278.02, 19,884.17 and 7,714.49

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Solution

The fourth proportional to 13,278.02, 19,884.17 and 7,714.49 is: 11,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.02 : 19,884.17 = 7,714.49 : x
  2. Step 2: Convert to fraction form
    13,278.02/19,884.17 = 7,714.49/x
  3. Step 3: Cross multiply
    13,278.02x = 19,884.17 × 7,714.49
  4. Step 4: Simplify right side
    13,278.02x = 153,396,092.63
  5. Step 5: Solve for x
    x = 153,396,092.63/13,278.02
  6. Step 6: Final answer
    x = 11,552.64

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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.