Home / 9,866.28-13,615.50-5,674.50

Finding the Fourth Proportional to 9,866.28, 13,615.50 and 5,674.50

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Solution

The fourth proportional to 9,866.28, 13,615.50 and 5,674.50 is: 7,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.28 : 13,615.50 = 5,674.50 : x
  2. Step 2: Convert to fraction form
    9,866.28/13,615.50 = 5,674.50/x
  3. Step 3: Cross multiply
    9,866.28x = 13,615.50 × 5,674.50
  4. Step 4: Simplify right side
    9,866.28x = 77,261,154.75
  5. Step 5: Solve for x
    x = 77,261,154.75/9,866.28
  6. Step 6: Final answer
    x = 7,830.83

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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.