Home / 11,525.36-15,897.60-7,987.88

Finding the Fourth Proportional to 11,525.36, 15,897.60 and 7,987.88

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Solution

The fourth proportional to 11,525.36, 15,897.60 and 7,987.88 is: 11,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.36 : 15,897.60 = 7,987.88 : x
  2. Step 2: Convert to fraction form
    11,525.36/15,897.60 = 7,987.88/x
  3. Step 3: Cross multiply
    11,525.36x = 15,897.60 × 7,987.88
  4. Step 4: Simplify right side
    11,525.36x = 126,988,160.83
  5. Step 5: Solve for x
    x = 126,988,160.83/11,525.36
  6. Step 6: Final answer
    x = 11,018.16

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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.