Home / 10,439.41-15,601.79-7,634.15

Finding the Fourth Proportional to 10,439.41, 15,601.79 and 7,634.15

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Solution

The fourth proportional to 10,439.41, 15,601.79 and 7,634.15 is: 11,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.41 : 15,601.79 = 7,634.15 : x
  2. Step 2: Convert to fraction form
    10,439.41/15,601.79 = 7,634.15/x
  3. Step 3: Cross multiply
    10,439.41x = 15,601.79 × 7,634.15
  4. Step 4: Simplify right side
    10,439.41x = 119,106,366.96
  5. Step 5: Solve for x
    x = 119,106,366.96/10,439.41
  6. Step 6: Final answer
    x = 11,409.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.