Home / 9,981-14,973.24-3,317.88

Finding the Fourth Proportional to 9,981, 14,973.24 and 3,317.88

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Solution

The fourth proportional to 9,981, 14,973.24 and 3,317.88 is: 4,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981 : 14,973.24 = 3,317.88 : x
  2. Step 2: Convert to fraction form
    9,981/14,973.24 = 3,317.88/x
  3. Step 3: Cross multiply
    9,981x = 14,973.24 × 3,317.88
  4. Step 4: Simplify right side
    9,981x = 49,679,413.53
  5. Step 5: Solve for x
    x = 49,679,413.53/9,981
  6. Step 6: Final answer
    x = 4,977.40

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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.