Home / 15,089.36-20,822.33-8,374.96

Finding the Fourth Proportional to 15,089.36, 20,822.33 and 8,374.96

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Solution

The fourth proportional to 15,089.36, 20,822.33 and 8,374.96 is: 11,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,089.36 : 20,822.33 = 8,374.96 : x
  2. Step 2: Convert to fraction form
    15,089.36/20,822.33 = 8,374.96/x
  3. Step 3: Cross multiply
    15,089.36x = 20,822.33 × 8,374.96
  4. Step 4: Simplify right side
    15,089.36x = 174,386,227.82
  5. Step 5: Solve for x
    x = 174,386,227.82/15,089.36
  6. Step 6: Final answer
    x = 11,556.90

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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.