Home / 10,161.90-14,032.06-6,391.36

Finding the Fourth Proportional to 10,161.90, 14,032.06 and 6,391.36

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Solution

The fourth proportional to 10,161.90, 14,032.06 and 6,391.36 is: 8,825.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.90 : 14,032.06 = 6,391.36 : x
  2. Step 2: Convert to fraction form
    10,161.90/14,032.06 = 6,391.36/x
  3. Step 3: Cross multiply
    10,161.90x = 14,032.06 × 6,391.36
  4. Step 4: Simplify right side
    10,161.90x = 89,683,947.00
  5. Step 5: Solve for x
    x = 89,683,947.00/10,161.90
  6. Step 6: Final answer
    x = 8,825.51

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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.