Home / 12,587.48-18,853.42-11,425.03

Finding the Fourth Proportional to 12,587.48, 18,853.42 and 11,425.03

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Solution

The fourth proportional to 12,587.48, 18,853.42 and 11,425.03 is: 17,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.48 : 18,853.42 = 11,425.03 : x
  2. Step 2: Convert to fraction form
    12,587.48/18,853.42 = 11,425.03/x
  3. Step 3: Cross multiply
    12,587.48x = 18,853.42 × 11,425.03
  4. Step 4: Simplify right side
    12,587.48x = 215,400,889.10
  5. Step 5: Solve for x
    x = 215,400,889.10/12,587.48
  6. Step 6: Final answer
    x = 17,112.31

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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.