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Finding the Fourth Proportional to 7,777.65, 10,727.73 and 7,520.52

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Solution

The fourth proportional to 7,777.65, 10,727.73 and 7,520.52 is: 10,373.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.65 : 10,727.73 = 7,520.52 : x
  2. Step 2: Convert to fraction form
    7,777.65/10,727.73 = 7,520.52/x
  3. Step 3: Cross multiply
    7,777.65x = 10,727.73 × 7,520.52
  4. Step 4: Simplify right side
    7,777.65x = 80,678,108.02
  5. Step 5: Solve for x
    x = 80,678,108.02/7,777.65
  6. Step 6: Final answer
    x = 10,373.07

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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.