Home / 8,854.28-12,219.75-5,317.41

Finding the Fourth Proportional to 8,854.28, 12,219.75 and 5,317.41

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Solution

The fourth proportional to 8,854.28, 12,219.75 and 5,317.41 is: 7,338.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.28 : 12,219.75 = 5,317.41 : x
  2. Step 2: Convert to fraction form
    8,854.28/12,219.75 = 5,317.41/x
  3. Step 3: Cross multiply
    8,854.28x = 12,219.75 × 5,317.41
  4. Step 4: Simplify right side
    8,854.28x = 64,977,420.85
  5. Step 5: Solve for x
    x = 64,977,420.85/8,854.28
  6. Step 6: Final answer
    x = 7,338.54

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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.