Home / 11,440.65-17,130.90-9,207.60

Finding the Fourth Proportional to 11,440.65, 17,130.90 and 9,207.60

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Solution

The fourth proportional to 11,440.65, 17,130.90 and 9,207.60 is: 13,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.65 : 17,130.90 = 9,207.60 : x
  2. Step 2: Convert to fraction form
    11,440.65/17,130.90 = 9,207.60/x
  3. Step 3: Cross multiply
    11,440.65x = 17,130.90 × 9,207.60
  4. Step 4: Simplify right side
    11,440.65x = 157,734,474.84
  5. Step 5: Solve for x
    x = 157,734,474.84/11,440.65
  6. Step 6: Final answer
    x = 13,787.20

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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.