Home / 15,088.50-20,822.13-8,799.66

Finding the Fourth Proportional to 15,088.50, 20,822.13 and 8,799.66

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Solution

The fourth proportional to 15,088.50, 20,822.13 and 8,799.66 is: 12,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.50 : 20,822.13 = 8,799.66 : x
  2. Step 2: Convert to fraction form
    15,088.50/20,822.13 = 8,799.66/x
  3. Step 3: Cross multiply
    15,088.50x = 20,822.13 × 8,799.66
  4. Step 4: Simplify right side
    15,088.50x = 183,227,664.48
  5. Step 5: Solve for x
    x = 183,227,664.48/15,088.50
  6. Step 6: Final answer
    x = 12,143.53

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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.