Home / 10,136.32-13,986.80-6,604.31

Finding the Fourth Proportional to 10,136.32, 13,986.80 and 6,604.31

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Solution

The fourth proportional to 10,136.32, 13,986.80 and 6,604.31 is: 9,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.32 : 13,986.80 = 6,604.31 : x
  2. Step 2: Convert to fraction form
    10,136.32/13,986.80 = 6,604.31/x
  3. Step 3: Cross multiply
    10,136.32x = 13,986.80 × 6,604.31
  4. Step 4: Simplify right side
    10,136.32x = 92,373,163.11
  5. Step 5: Solve for x
    x = 92,373,163.11/10,136.32
  6. Step 6: Final answer
    x = 9,113.09

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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.