Home / 12,919.67-17,828.92-7,254.47

Finding the Fourth Proportional to 12,919.67, 17,828.92 and 7,254.47

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Solution

The fourth proportional to 12,919.67, 17,828.92 and 7,254.47 is: 10,011.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.67 : 17,828.92 = 7,254.47 : x
  2. Step 2: Convert to fraction form
    12,919.67/17,828.92 = 7,254.47/x
  3. Step 3: Cross multiply
    12,919.67x = 17,828.92 × 7,254.47
  4. Step 4: Simplify right side
    12,919.67x = 129,339,285.20
  5. Step 5: Solve for x
    x = 129,339,285.20/12,919.67
  6. Step 6: Final answer
    x = 10,011.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.