Home / 15,441.40-23,172.90-9,908.20

Finding the Fourth Proportional to 15,441.40, 23,172.90 and 9,908.20

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Solution

The fourth proportional to 15,441.40, 23,172.90 and 9,908.20 is: 14,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.40 : 23,172.90 = 9,908.20 : x
  2. Step 2: Convert to fraction form
    15,441.40/23,172.90 = 9,908.20/x
  3. Step 3: Cross multiply
    15,441.40x = 23,172.90 × 9,908.20
  4. Step 4: Simplify right side
    15,441.40x = 229,601,727.78
  5. Step 5: Solve for x
    x = 229,601,727.78/15,441.40
  6. Step 6: Final answer
    x = 14,869.23

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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.