Home / 13,829.40-20,707.65-10,889.10

Finding the Fourth Proportional to 13,829.40, 20,707.65 and 10,889.10

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Solution

The fourth proportional to 13,829.40, 20,707.65 and 10,889.10 is: 16,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.40 : 20,707.65 = 10,889.10 : x
  2. Step 2: Convert to fraction form
    13,829.40/20,707.65 = 10,889.10/x
  3. Step 3: Cross multiply
    13,829.40x = 20,707.65 × 10,889.10
  4. Step 4: Simplify right side
    13,829.40x = 225,487,671.62
  5. Step 5: Solve for x
    x = 225,487,671.62/13,829.40
  6. Step 6: Final answer
    x = 16,304.95

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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.