Home / 9,815.18-14,721.95-3,239.60

Finding the Fourth Proportional to 9,815.18, 14,721.95 and 3,239.60

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Solution

The fourth proportional to 9,815.18, 14,721.95 and 3,239.60 is: 4,859.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.18 : 14,721.95 = 3,239.60 : x
  2. Step 2: Convert to fraction form
    9,815.18/14,721.95 = 3,239.60/x
  3. Step 3: Cross multiply
    9,815.18x = 14,721.95 × 3,239.60
  4. Step 4: Simplify right side
    9,815.18x = 47,693,163.71
  5. Step 5: Solve for x
    x = 47,693,163.71/9,815.18
  6. Step 6: Final answer
    x = 4,859.13

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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.