Home / 13,150.65-18,148.29-7,182.60

Finding the Fourth Proportional to 13,150.65, 18,148.29 and 7,182.60

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Solution

The fourth proportional to 13,150.65, 18,148.29 and 7,182.60 is: 9,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.65 : 18,148.29 = 7,182.60 : x
  2. Step 2: Convert to fraction form
    13,150.65/18,148.29 = 7,182.60/x
  3. Step 3: Cross multiply
    13,150.65x = 18,148.29 × 7,182.60
  4. Step 4: Simplify right side
    13,150.65x = 130,351,907.75
  5. Step 5: Solve for x
    x = 130,351,907.75/13,150.65
  6. Step 6: Final answer
    x = 9,912.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.