Home / 9,219.90-13,762.53-7,912.04

Finding the Fourth Proportional to 9,219.90, 13,762.53 and 7,912.04

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Solution

The fourth proportional to 9,219.90, 13,762.53 and 7,912.04 is: 11,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.90 : 13,762.53 = 7,912.04 : x
  2. Step 2: Convert to fraction form
    9,219.90/13,762.53 = 7,912.04/x
  3. Step 3: Cross multiply
    9,219.90x = 13,762.53 × 7,912.04
  4. Step 4: Simplify right side
    9,219.90x = 108,889,687.86
  5. Step 5: Solve for x
    x = 108,889,687.86/9,219.90
  6. Step 6: Final answer
    x = 11,810.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.