Home / 13,319.64-19,981.89-5,528.25

Finding the Fourth Proportional to 13,319.64, 19,981.89 and 5,528.25

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Solution

The fourth proportional to 13,319.64, 19,981.89 and 5,528.25 is: 8,293.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.64 : 19,981.89 = 5,528.25 : x
  2. Step 2: Convert to fraction form
    13,319.64/19,981.89 = 5,528.25/x
  3. Step 3: Cross multiply
    13,319.64x = 19,981.89 × 5,528.25
  4. Step 4: Simplify right side
    13,319.64x = 110,464,883.39
  5. Step 5: Solve for x
    x = 110,464,883.39/13,319.64
  6. Step 6: Final answer
    x = 8,293.38

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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.