Home / 8,317.89-12,480.48-4,417.74

Finding the Fourth Proportional to 8,317.89, 12,480.48 and 4,417.74

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Solution

The fourth proportional to 8,317.89, 12,480.48 and 4,417.74 is: 6,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.89 : 12,480.48 = 4,417.74 : x
  2. Step 2: Convert to fraction form
    8,317.89/12,480.48 = 4,417.74/x
  3. Step 3: Cross multiply
    8,317.89x = 12,480.48 × 4,417.74
  4. Step 4: Simplify right side
    8,317.89x = 55,135,515.72
  5. Step 5: Solve for x
    x = 55,135,515.72/8,317.89
  6. Step 6: Final answer
    x = 6,628.55

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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.