Home / 8,784.11-12,121.93-5,007.49

Finding the Fourth Proportional to 8,784.11, 12,121.93 and 5,007.49

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Solution

The fourth proportional to 8,784.11, 12,121.93 and 5,007.49 is: 6,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.11 : 12,121.93 = 5,007.49 : x
  2. Step 2: Convert to fraction form
    8,784.11/12,121.93 = 5,007.49/x
  3. Step 3: Cross multiply
    8,784.11x = 12,121.93 × 5,007.49
  4. Step 4: Simplify right side
    8,784.11x = 60,700,419.21
  5. Step 5: Solve for x
    x = 60,700,419.21/8,784.11
  6. Step 6: Final answer
    x = 6,910.25

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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.