Home / 10,639.31-14,675.60-7,650.41

Finding the Fourth Proportional to 10,639.31, 14,675.60 and 7,650.41

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Solution

The fourth proportional to 10,639.31, 14,675.60 and 7,650.41 is: 10,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.31 : 14,675.60 = 7,650.41 : x
  2. Step 2: Convert to fraction form
    10,639.31/14,675.60 = 7,650.41/x
  3. Step 3: Cross multiply
    10,639.31x = 14,675.60 × 7,650.41
  4. Step 4: Simplify right side
    10,639.31x = 112,274,318.74
  5. Step 5: Solve for x
    x = 112,274,318.74/10,639.31
  6. Step 6: Final answer
    x = 10,552.78

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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.