Home / 19,987.80-27,576.96-11,602.68

Finding the Fourth Proportional to 19,987.80, 27,576.96 and 11,602.68

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Solution

The fourth proportional to 19,987.80, 27,576.96 and 11,602.68 is: 16,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.80 : 27,576.96 = 11,602.68 : x
  2. Step 2: Convert to fraction form
    19,987.80/27,576.96 = 11,602.68/x
  3. Step 3: Cross multiply
    19,987.80x = 27,576.96 × 11,602.68
  4. Step 4: Simplify right side
    19,987.80x = 319,966,642.25
  5. Step 5: Solve for x
    x = 319,966,642.25/19,987.80
  6. Step 6: Final answer
    x = 16,008.10

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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.