Home / 15,088.96-20,822.76-8,374.58

Finding the Fourth Proportional to 15,088.96, 20,822.76 and 8,374.58

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Solution

The fourth proportional to 15,088.96, 20,822.76 and 8,374.58 is: 11,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.96 : 20,822.76 = 8,374.58 : x
  2. Step 2: Convert to fraction form
    15,088.96/20,822.76 = 8,374.58/x
  3. Step 3: Cross multiply
    15,088.96x = 20,822.76 × 8,374.58
  4. Step 4: Simplify right side
    15,088.96x = 174,381,890.20
  5. Step 5: Solve for x
    x = 174,381,890.20/15,088.96
  6. Step 6: Final answer
    x = 11,556.92

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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.