Home / 8,756.43-12,083.95-5,219.97

Finding the Fourth Proportional to 8,756.43, 12,083.95 and 5,219.97

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Solution

The fourth proportional to 8,756.43, 12,083.95 and 5,219.97 is: 7,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.43 : 12,083.95 = 5,219.97 : x
  2. Step 2: Convert to fraction form
    8,756.43/12,083.95 = 5,219.97/x
  3. Step 3: Cross multiply
    8,756.43x = 12,083.95 × 5,219.97
  4. Step 4: Simplify right side
    8,756.43x = 63,077,856.48
  5. Step 5: Solve for x
    x = 63,077,856.48/8,756.43
  6. Step 6: Final answer
    x = 7,203.60

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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.