Home / 9,387.99-12,968.10-8,723.79

Finding the Fourth Proportional to 9,387.99, 12,968.10 and 8,723.79

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Solution

The fourth proportional to 9,387.99, 12,968.10 and 8,723.79 is: 12,050.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.99 : 12,968.10 = 8,723.79 : x
  2. Step 2: Convert to fraction form
    9,387.99/12,968.10 = 8,723.79/x
  3. Step 3: Cross multiply
    9,387.99x = 12,968.10 × 8,723.79
  4. Step 4: Simplify right side
    9,387.99x = 113,130,981.10
  5. Step 5: Solve for x
    x = 113,130,981.10/9,387.99
  6. Step 6: Final answer
    x = 12,050.61

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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.