Home / 15,138.31-22,674.65-7,330.75

Finding the Fourth Proportional to 15,138.31, 22,674.65 and 7,330.75

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Solution

The fourth proportional to 15,138.31, 22,674.65 and 7,330.75 is: 10,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.31 : 22,674.65 = 7,330.75 : x
  2. Step 2: Convert to fraction form
    15,138.31/22,674.65 = 7,330.75/x
  3. Step 3: Cross multiply
    15,138.31x = 22,674.65 × 7,330.75
  4. Step 4: Simplify right side
    15,138.31x = 166,222,153.83
  5. Step 5: Solve for x
    x = 166,222,153.83/15,138.31
  6. Step 6: Final answer
    x = 10,980.23

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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.