Home / 11,422.19-15,762.30-6,386.42

Finding the Fourth Proportional to 11,422.19, 15,762.30 and 6,386.42

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Solution

The fourth proportional to 11,422.19, 15,762.30 and 6,386.42 is: 8,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.19 : 15,762.30 = 6,386.42 : x
  2. Step 2: Convert to fraction form
    11,422.19/15,762.30 = 6,386.42/x
  3. Step 3: Cross multiply
    11,422.19x = 15,762.30 × 6,386.42
  4. Step 4: Simplify right side
    11,422.19x = 100,664,589.15
  5. Step 5: Solve for x
    x = 100,664,589.15/11,422.19
  6. Step 6: Final answer
    x = 8,813.08

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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.