Home / 10,342.08-15,527.70-7,418.79

Finding the Fourth Proportional to 10,342.08, 15,527.70 and 7,418.79

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Solution

The fourth proportional to 10,342.08, 15,527.70 and 7,418.79 is: 11,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.08 : 15,527.70 = 7,418.79 : x
  2. Step 2: Convert to fraction form
    10,342.08/15,527.70 = 7,418.79/x
  3. Step 3: Cross multiply
    10,342.08x = 15,527.70 × 7,418.79
  4. Step 4: Simplify right side
    10,342.08x = 115,196,745.48
  5. Step 5: Solve for x
    x = 115,196,745.48/10,342.08
  6. Step 6: Final answer
    x = 11,138.64

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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.