Home / 12,510.80-18,754.68-5,940.08

Finding the Fourth Proportional to 12,510.80, 18,754.68 and 5,940.08

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Solution

The fourth proportional to 12,510.80, 18,754.68 and 5,940.08 is: 8,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.80 : 18,754.68 = 5,940.08 : x
  2. Step 2: Convert to fraction form
    12,510.80/18,754.68 = 5,940.08/x
  3. Step 3: Cross multiply
    12,510.80x = 18,754.68 × 5,940.08
  4. Step 4: Simplify right side
    12,510.80x = 111,404,299.57
  5. Step 5: Solve for x
    x = 111,404,299.57/12,510.80
  6. Step 6: Final answer
    x = 8,904.65

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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.