Home / 15,450.81-23,118.78-9,214.20

Finding the Fourth Proportional to 15,450.81, 23,118.78 and 9,214.20

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Solution

The fourth proportional to 15,450.81, 23,118.78 and 9,214.20 is: 13,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.81 : 23,118.78 = 9,214.20 : x
  2. Step 2: Convert to fraction form
    15,450.81/23,118.78 = 9,214.20/x
  3. Step 3: Cross multiply
    15,450.81x = 23,118.78 × 9,214.20
  4. Step 4: Simplify right side
    15,450.81x = 213,021,062.68
  5. Step 5: Solve for x
    x = 213,021,062.68/15,450.81
  6. Step 6: Final answer
    x = 13,787.05

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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.