Home / 10,560.40-15,843.36-3,986.64

Finding the Fourth Proportional to 10,560.40, 15,843.36 and 3,986.64

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Solution

The fourth proportional to 10,560.40, 15,843.36 and 3,986.64 is: 5,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,560.40 : 15,843.36 = 3,986.64 : x
  2. Step 2: Convert to fraction form
    10,560.40/15,843.36 = 3,986.64/x
  3. Step 3: Cross multiply
    10,560.40x = 15,843.36 × 3,986.64
  4. Step 4: Simplify right side
    10,560.40x = 63,161,772.71
  5. Step 5: Solve for x
    x = 63,161,772.71/10,560.40
  6. Step 6: Final answer
    x = 5,981.00

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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.