Home / 9,899.76-14,839.92-4,709.28

Finding the Fourth Proportional to 9,899.76, 14,839.92 and 4,709.28

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Solution

The fourth proportional to 9,899.76, 14,839.92 and 4,709.28 is: 7,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.76 : 14,839.92 = 4,709.28 : x
  2. Step 2: Convert to fraction form
    9,899.76/14,839.92 = 4,709.28/x
  3. Step 3: Cross multiply
    9,899.76x = 14,839.92 × 4,709.28
  4. Step 4: Simplify right side
    9,899.76x = 69,885,338.46
  5. Step 5: Solve for x
    x = 69,885,338.46/9,899.76
  6. Step 6: Final answer
    x = 7,059.30

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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.