Home / 10,669.23-15,990.41-5,118.03

Finding the Fourth Proportional to 10,669.23, 15,990.41 and 5,118.03

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Solution

The fourth proportional to 10,669.23, 15,990.41 and 5,118.03 is: 7,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.23 : 15,990.41 = 5,118.03 : x
  2. Step 2: Convert to fraction form
    10,669.23/15,990.41 = 5,118.03/x
  3. Step 3: Cross multiply
    10,669.23x = 15,990.41 × 5,118.03
  4. Step 4: Simplify right side
    10,669.23x = 81,839,372.50
  5. Step 5: Solve for x
    x = 81,839,372.50/10,669.23
  6. Step 6: Final answer
    x = 7,670.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.