Home / 27,510.68-41,267.78-7,790.80

Finding the Fourth Proportional to 27,510.68, 41,267.78 and 7,790.80

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Solution

The fourth proportional to 27,510.68, 41,267.78 and 7,790.80 is: 11,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,510.68 : 41,267.78 = 7,790.80 : x
  2. Step 2: Convert to fraction form
    27,510.68/41,267.78 = 7,790.80/x
  3. Step 3: Cross multiply
    27,510.68x = 41,267.78 × 7,790.80
  4. Step 4: Simplify right side
    27,510.68x = 321,509,020.42
  5. Step 5: Solve for x
    x = 321,509,020.42/27,510.68
  6. Step 6: Final answer
    x = 11,686.70

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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.