Home / 12,890.32-19,296.52-11,658.28

Finding the Fourth Proportional to 12,890.32, 19,296.52 and 11,658.28

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Solution

The fourth proportional to 12,890.32, 19,296.52 and 11,658.28 is: 17,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.32 : 19,296.52 = 11,658.28 : x
  2. Step 2: Convert to fraction form
    12,890.32/19,296.52 = 11,658.28/x
  3. Step 3: Cross multiply
    12,890.32x = 19,296.52 × 11,658.28
  4. Step 4: Simplify right side
    12,890.32x = 224,964,233.19
  5. Step 5: Solve for x
    x = 224,964,233.19/12,890.32
  6. Step 6: Final answer
    x = 17,452.18

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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.