Home / 11,437.30-15,782.43-6,401.62

Finding the Fourth Proportional to 11,437.30, 15,782.43 and 6,401.62

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Solution

The fourth proportional to 11,437.30, 15,782.43 and 6,401.62 is: 8,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.30 : 15,782.43 = 6,401.62 : x
  2. Step 2: Convert to fraction form
    11,437.30/15,782.43 = 6,401.62/x
  3. Step 3: Cross multiply
    11,437.30x = 15,782.43 × 6,401.62
  4. Step 4: Simplify right side
    11,437.30x = 101,033,119.54
  5. Step 5: Solve for x
    x = 101,033,119.54/11,437.30
  6. Step 6: Final answer
    x = 8,833.65

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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.