Home / 12,362.31-18,545.94-11,123.01

Finding the Fourth Proportional to 12,362.31, 18,545.94 and 11,123.01

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Solution

The fourth proportional to 12,362.31, 18,545.94 and 11,123.01 is: 16,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.31 : 18,545.94 = 11,123.01 : x
  2. Step 2: Convert to fraction form
    12,362.31/18,545.94 = 11,123.01/x
  3. Step 3: Cross multiply
    12,362.31x = 18,545.94 × 11,123.01
  4. Step 4: Simplify right side
    12,362.31x = 206,286,676.08
  5. Step 5: Solve for x
    x = 206,286,676.08/12,362.31
  6. Step 6: Final answer
    x = 16,686.74

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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.