Home / 18,124.46-25,003.22-12,822.20

Finding the Fourth Proportional to 18,124.46, 25,003.22 and 12,822.20

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Solution

The fourth proportional to 18,124.46, 25,003.22 and 12,822.20 is: 17,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.46 : 25,003.22 = 12,822.20 : x
  2. Step 2: Convert to fraction form
    18,124.46/25,003.22 = 12,822.20/x
  3. Step 3: Cross multiply
    18,124.46x = 25,003.22 × 12,822.20
  4. Step 4: Simplify right side
    18,124.46x = 320,596,287.48
  5. Step 5: Solve for x
    x = 320,596,287.48/18,124.46
  6. Step 6: Final answer
    x = 17,688.60

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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.