Home / 10,288.80-15,422.40-4,046.40

Finding the Fourth Proportional to 10,288.80, 15,422.40 and 4,046.40

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Solution

The fourth proportional to 10,288.80, 15,422.40 and 4,046.40 is: 6,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.80 : 15,422.40 = 4,046.40 : x
  2. Step 2: Convert to fraction form
    10,288.80/15,422.40 = 4,046.40/x
  3. Step 3: Cross multiply
    10,288.80x = 15,422.40 × 4,046.40
  4. Step 4: Simplify right side
    10,288.80x = 62,405,199.36
  5. Step 5: Solve for x
    x = 62,405,199.36/10,288.80
  6. Step 6: Final answer
    x = 6,065.35

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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.