Home / 9,328.80-13,980.78-3,479.52

Finding the Fourth Proportional to 9,328.80, 13,980.78 and 3,479.52

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Solution

The fourth proportional to 9,328.80, 13,980.78 and 3,479.52 is: 5,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.80 : 13,980.78 = 3,479.52 : x
  2. Step 2: Convert to fraction form
    9,328.80/13,980.78 = 3,479.52/x
  3. Step 3: Cross multiply
    9,328.80x = 13,980.78 × 3,479.52
  4. Step 4: Simplify right side
    9,328.80x = 48,646,403.63
  5. Step 5: Solve for x
    x = 48,646,403.63/9,328.80
  6. Step 6: Final answer
    x = 5,214.65

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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.