Home / 12,839.30-19,226.55-10,247.30

Finding the Fourth Proportional to 12,839.30, 19,226.55 and 10,247.30

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Solution

The fourth proportional to 12,839.30, 19,226.55 and 10,247.30 is: 15,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.30 : 19,226.55 = 10,247.30 : x
  2. Step 2: Convert to fraction form
    12,839.30/19,226.55 = 10,247.30/x
  3. Step 3: Cross multiply
    12,839.30x = 19,226.55 × 10,247.30
  4. Step 4: Simplify right side
    12,839.30x = 197,020,225.82
  5. Step 5: Solve for x
    x = 197,020,225.82/12,839.30
  6. Step 6: Final answer
    x = 15,345.09

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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.