Home / 12,125.78-16,728.07-8,763.26

Finding the Fourth Proportional to 12,125.78, 16,728.07 and 8,763.26

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Solution

The fourth proportional to 12,125.78, 16,728.07 and 8,763.26 is: 12,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.78 : 16,728.07 = 8,763.26 : x
  2. Step 2: Convert to fraction form
    12,125.78/16,728.07 = 8,763.26/x
  3. Step 3: Cross multiply
    12,125.78x = 16,728.07 × 8,763.26
  4. Step 4: Simplify right side
    12,125.78x = 146,592,426.71
  5. Step 5: Solve for x
    x = 146,592,426.71/12,125.78
  6. Step 6: Final answer
    x = 12,089.32

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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.