Home / 8,440.31-11,646.95-4,903.75

Finding the Fourth Proportional to 8,440.31, 11,646.95 and 4,903.75

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Solution

The fourth proportional to 8,440.31, 11,646.95 and 4,903.75 is: 6,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.31 : 11,646.95 = 4,903.75 : x
  2. Step 2: Convert to fraction form
    8,440.31/11,646.95 = 4,903.75/x
  3. Step 3: Cross multiply
    8,440.31x = 11,646.95 × 4,903.75
  4. Step 4: Simplify right side
    8,440.31x = 57,113,648.31
  5. Step 5: Solve for x
    x = 57,113,648.31/8,440.31
  6. Step 6: Final answer
    x = 6,766.78

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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.