Home / 13,982.16-20,963.52-5,214.72

Finding the Fourth Proportional to 13,982.16, 20,963.52 and 5,214.72

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Solution

The fourth proportional to 13,982.16, 20,963.52 and 5,214.72 is: 7,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.16 : 20,963.52 = 5,214.72 : x
  2. Step 2: Convert to fraction form
    13,982.16/20,963.52 = 5,214.72/x
  3. Step 3: Cross multiply
    13,982.16x = 20,963.52 × 5,214.72
  4. Step 4: Simplify right side
    13,982.16x = 109,318,887.01
  5. Step 5: Solve for x
    x = 109,318,887.01/13,982.16
  6. Step 6: Final answer
    x = 7,818.45

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1.5x scale

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.