Home / 12,974.27-19,390.32-9,471.66

Finding the Fourth Proportional to 12,974.27, 19,390.32 and 9,471.66

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Solution

The fourth proportional to 12,974.27, 19,390.32 and 9,471.66 is: 14,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.27 : 19,390.32 = 9,471.66 : x
  2. Step 2: Convert to fraction form
    12,974.27/19,390.32 = 9,471.66/x
  3. Step 3: Cross multiply
    12,974.27x = 19,390.32 × 9,471.66
  4. Step 4: Simplify right side
    12,974.27x = 183,658,421.38
  5. Step 5: Solve for x
    x = 183,658,421.38/12,974.27
  6. Step 6: Final answer
    x = 14,155.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.