Home / 13,901.20-20,852.88-4,040.64

Finding the Fourth Proportional to 13,901.20, 20,852.88 and 4,040.64

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Solution

The fourth proportional to 13,901.20, 20,852.88 and 4,040.64 is: 6,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.20 : 20,852.88 = 4,040.64 : x
  2. Step 2: Convert to fraction form
    13,901.20/20,852.88 = 4,040.64/x
  3. Step 3: Cross multiply
    13,901.20x = 20,852.88 × 4,040.64
  4. Step 4: Simplify right side
    13,901.20x = 84,258,981.04
  5. Step 5: Solve for x
    x = 84,258,981.04/13,901.20
  6. Step 6: Final answer
    x = 6,061.27

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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.