Home / 8,319.90-12,483.48-4,419.74

Finding the Fourth Proportional to 8,319.90, 12,483.48 and 4,419.74

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Solution

The fourth proportional to 8,319.90, 12,483.48 and 4,419.74 is: 6,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.90 : 12,483.48 = 4,419.74 : x
  2. Step 2: Convert to fraction form
    8,319.90/12,483.48 = 4,419.74/x
  3. Step 3: Cross multiply
    8,319.90x = 12,483.48 × 4,419.74
  4. Step 4: Simplify right side
    8,319.90x = 55,173,735.90
  5. Step 5: Solve for x
    x = 55,173,735.90/8,319.90
  6. Step 6: Final answer
    x = 6,631.54

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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.