Home / 17,515.36-26,280.32-8,747.92

Finding the Fourth Proportional to 17,515.36, 26,280.32 and 8,747.92

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Solution

The fourth proportional to 17,515.36, 26,280.32 and 8,747.92 is: 13,125.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,515.36 : 26,280.32 = 8,747.92 : x
  2. Step 2: Convert to fraction form
    17,515.36/26,280.32 = 8,747.92/x
  3. Step 3: Cross multiply
    17,515.36x = 26,280.32 × 8,747.92
  4. Step 4: Simplify right side
    17,515.36x = 229,898,136.93
  5. Step 5: Solve for x
    x = 229,898,136.93/17,515.36
  6. Step 6: Final answer
    x = 13,125.52

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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.