Home / 13,328.39-19,981.78-5,543.03

Finding the Fourth Proportional to 13,328.39, 19,981.78 and 5,543.03

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Solution

The fourth proportional to 13,328.39, 19,981.78 and 5,543.03 is: 8,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.39 : 19,981.78 = 5,543.03 : x
  2. Step 2: Convert to fraction form
    13,328.39/19,981.78 = 5,543.03/x
  3. Step 3: Cross multiply
    13,328.39x = 19,981.78 × 5,543.03
  4. Step 4: Simplify right side
    13,328.39x = 110,759,478.37
  5. Step 5: Solve for x
    x = 110,759,478.37/13,328.39
  6. Step 6: Final answer
    x = 8,310.04

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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.