Home / 7,984.86-11,988.33-5,513.58

Finding the Fourth Proportional to 7,984.86, 11,988.33 and 5,513.58

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Solution

The fourth proportional to 7,984.86, 11,988.33 and 5,513.58 is: 8,277.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.86 : 11,988.33 = 5,513.58 : x
  2. Step 2: Convert to fraction form
    7,984.86/11,988.33 = 5,513.58/x
  3. Step 3: Cross multiply
    7,984.86x = 11,988.33 × 5,513.58
  4. Step 4: Simplify right side
    7,984.86x = 66,098,616.52
  5. Step 5: Solve for x
    x = 66,098,616.52/7,984.86
  6. Step 6: Final answer
    x = 8,277.99

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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.