Home / 13,972.05-20,943.50-5,648.70

Finding the Fourth Proportional to 13,972.05, 20,943.50 and 5,648.70

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Solution

The fourth proportional to 13,972.05, 20,943.50 and 5,648.70 is: 8,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.05 : 20,943.50 = 5,648.70 : x
  2. Step 2: Convert to fraction form
    13,972.05/20,943.50 = 5,648.70/x
  3. Step 3: Cross multiply
    13,972.05x = 20,943.50 × 5,648.70
  4. Step 4: Simplify right side
    13,972.05x = 118,303,548.45
  5. Step 5: Solve for x
    x = 118,303,548.45/13,972.05
  6. Step 6: Final answer
    x = 8,467.16

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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.