Home / 10,438.20-14,405.86-6,664.84

Finding the Fourth Proportional to 10,438.20, 14,405.86 and 6,664.84

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Solution

The fourth proportional to 10,438.20, 14,405.86 and 6,664.84 is: 9,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.20 : 14,405.86 = 6,664.84 : x
  2. Step 2: Convert to fraction form
    10,438.20/14,405.86 = 6,664.84/x
  3. Step 3: Cross multiply
    10,438.20x = 14,405.86 × 6,664.84
  4. Step 4: Simplify right side
    10,438.20x = 96,012,751.96
  5. Step 5: Solve for x
    x = 96,012,751.96/10,438.20
  6. Step 6: Final answer
    x = 9,198.21

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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.