Home / 12,864.11-19,285.07-4,972.16

Finding the Fourth Proportional to 12,864.11, 19,285.07 and 4,972.16

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Solution

The fourth proportional to 12,864.11, 19,285.07 and 4,972.16 is: 7,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.11 : 19,285.07 = 4,972.16 : x
  2. Step 2: Convert to fraction form
    12,864.11/19,285.07 = 4,972.16/x
  3. Step 3: Cross multiply
    12,864.11x = 19,285.07 × 4,972.16
  4. Step 4: Simplify right side
    12,864.11x = 95,888,514.29
  5. Step 5: Solve for x
    x = 95,888,514.29/12,864.11
  6. Step 6: Final answer
    x = 7,453.96

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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.