Home / 9,823.95-14,742-3,980.61

Finding the Fourth Proportional to 9,823.95, 14,742 and 3,980.61

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Solution

The fourth proportional to 9,823.95, 14,742 and 3,980.61 is: 5,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,823.95 : 14,742 = 3,980.61 : x
  2. Step 2: Convert to fraction form
    9,823.95/14,742 = 3,980.61/x
  3. Step 3: Cross multiply
    9,823.95x = 14,742 × 3,980.61
  4. Step 4: Simplify right side
    9,823.95x = 58,682,152.62
  5. Step 5: Solve for x
    x = 58,682,152.62/9,823.95
  6. Step 6: Final answer
    x = 5,973.38

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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.