Home / 19,507.98-29,238.12-8,391.18

Finding the Fourth Proportional to 19,507.98, 29,238.12 and 8,391.18

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Solution

The fourth proportional to 19,507.98, 29,238.12 and 8,391.18 is: 12,576.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,507.98 : 29,238.12 = 8,391.18 : x
  2. Step 2: Convert to fraction form
    19,507.98/29,238.12 = 8,391.18/x
  3. Step 3: Cross multiply
    19,507.98x = 29,238.12 × 8,391.18
  4. Step 4: Simplify right side
    19,507.98x = 245,342,327.78
  5. Step 5: Solve for x
    x = 245,342,327.78/19,507.98
  6. Step 6: Final answer
    x = 12,576.51

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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.