Home / 13,600.28-20,356.64-7,017.40

Finding the Fourth Proportional to 13,600.28, 20,356.64 and 7,017.40

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Solution

The fourth proportional to 13,600.28, 20,356.64 and 7,017.40 is: 10,503.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.28 : 20,356.64 = 7,017.40 : x
  2. Step 2: Convert to fraction form
    13,600.28/20,356.64 = 7,017.40/x
  3. Step 3: Cross multiply
    13,600.28x = 20,356.64 × 7,017.40
  4. Step 4: Simplify right side
    13,600.28x = 142,850,685.54
  5. Step 5: Solve for x
    x = 142,850,685.54/13,600.28
  6. Step 6: Final answer
    x = 10,503.51

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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.