Home / 12,728.62-19,068.07-8,332.75

Finding the Fourth Proportional to 12,728.62, 19,068.07 and 8,332.75

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Solution

The fourth proportional to 12,728.62, 19,068.07 and 8,332.75 is: 12,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.62 : 19,068.07 = 8,332.75 : x
  2. Step 2: Convert to fraction form
    12,728.62/19,068.07 = 8,332.75/x
  3. Step 3: Cross multiply
    12,728.62x = 19,068.07 × 8,332.75
  4. Step 4: Simplify right side
    12,728.62x = 158,889,460.29
  5. Step 5: Solve for x
    x = 158,889,460.29/12,728.62
  6. Step 6: Final answer
    x = 12,482.85

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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.