Home / 8,289.60-11,439.63-4,512.71

Finding the Fourth Proportional to 8,289.60, 11,439.63 and 4,512.71

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Solution

The fourth proportional to 8,289.60, 11,439.63 and 4,512.71 is: 6,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.60 : 11,439.63 = 4,512.71 : x
  2. Step 2: Convert to fraction form
    8,289.60/11,439.63 = 4,512.71/x
  3. Step 3: Cross multiply
    8,289.60x = 11,439.63 × 4,512.71
  4. Step 4: Simplify right side
    8,289.60x = 51,623,675.50
  5. Step 5: Solve for x
    x = 51,623,675.50/8,289.60
  6. Step 6: Final answer
    x = 6,227.52

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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.