Home / 12,864.30-19,296.45-10,272.30

Finding the Fourth Proportional to 12,864.30, 19,296.45 and 10,272.30

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Solution

The fourth proportional to 12,864.30, 19,296.45 and 10,272.30 is: 15,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.30 : 19,296.45 = 10,272.30 : x
  2. Step 2: Convert to fraction form
    12,864.30/19,296.45 = 10,272.30/x
  3. Step 3: Cross multiply
    12,864.30x = 19,296.45 × 10,272.30
  4. Step 4: Simplify right side
    12,864.30x = 198,218,923.34
  5. Step 5: Solve for x
    x = 198,218,923.34/12,864.30
  6. Step 6: Final answer
    x = 15,408.45

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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.