Home / 9,579.95-14,378.13-5,424.05

Finding the Fourth Proportional to 9,579.95, 14,378.13 and 5,424.05

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Solution

The fourth proportional to 9,579.95, 14,378.13 and 5,424.05 is: 8,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.95 : 14,378.13 = 5,424.05 : x
  2. Step 2: Convert to fraction form
    9,579.95/14,378.13 = 5,424.05/x
  3. Step 3: Cross multiply
    9,579.95x = 14,378.13 × 5,424.05
  4. Step 4: Simplify right side
    9,579.95x = 77,987,624.14
  5. Step 5: Solve for x
    x = 77,987,624.14/9,579.95
  6. Step 6: Final answer
    x = 8,140.71

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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.