Home / 7,715.18-11,572.76-2,784.83

Finding the Fourth Proportional to 7,715.18, 11,572.76 and 2,784.83

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Solution

The fourth proportional to 7,715.18, 11,572.76 and 2,784.83 is: 4,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.18 : 11,572.76 = 2,784.83 : x
  2. Step 2: Convert to fraction form
    7,715.18/11,572.76 = 2,784.83/x
  3. Step 3: Cross multiply
    7,715.18x = 11,572.76 × 2,784.83
  4. Step 4: Simplify right side
    7,715.18x = 32,228,118.33
  5. Step 5: Solve for x
    x = 32,228,118.33/7,715.18
  6. Step 6: Final answer
    x = 4,177.23

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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.