Home / 12,015.17-18,023.25-4,123.11

Finding the Fourth Proportional to 12,015.17, 18,023.25 and 4,123.11

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Solution

The fourth proportional to 12,015.17, 18,023.25 and 4,123.11 is: 6,184.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.17 : 18,023.25 = 4,123.11 : x
  2. Step 2: Convert to fraction form
    12,015.17/18,023.25 = 4,123.11/x
  3. Step 3: Cross multiply
    12,015.17x = 18,023.25 × 4,123.11
  4. Step 4: Simplify right side
    12,015.17x = 74,311,871.77
  5. Step 5: Solve for x
    x = 74,311,871.77/12,015.17
  6. Step 6: Final answer
    x = 6,184.84

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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.