Home / 8,880.90-12,255.36-5,103.96

Finding the Fourth Proportional to 8,880.90, 12,255.36 and 5,103.96

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Solution

The fourth proportional to 8,880.90, 12,255.36 and 5,103.96 is: 7,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.90 : 12,255.36 = 5,103.96 : x
  2. Step 2: Convert to fraction form
    8,880.90/12,255.36 = 5,103.96/x
  3. Step 3: Cross multiply
    8,880.90x = 12,255.36 × 5,103.96
  4. Step 4: Simplify right side
    8,880.90x = 62,550,867.23
  5. Step 5: Solve for x
    x = 62,550,867.23/8,880.90
  6. Step 6: Final answer
    x = 7,043.30

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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.