Home / 19,103.06-28,639.67-9,102.66

Finding the Fourth Proportional to 19,103.06, 28,639.67 and 9,102.66

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Solution

The fourth proportional to 19,103.06, 28,639.67 and 9,102.66 is: 13,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.06 : 28,639.67 = 9,102.66 : x
  2. Step 2: Convert to fraction form
    19,103.06/28,639.67 = 9,102.66/x
  3. Step 3: Cross multiply
    19,103.06x = 28,639.67 × 9,102.66
  4. Step 4: Simplify right side
    19,103.06x = 260,697,133.01
  5. Step 5: Solve for x
    x = 260,697,133.01/19,103.06
  6. Step 6: Final answer
    x = 13,646.88

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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.