Home / 13,800.42-20,710.98-10,112.04

Finding the Fourth Proportional to 13,800.42, 20,710.98 and 10,112.04

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Solution

The fourth proportional to 13,800.42, 20,710.98 and 10,112.04 is: 15,175.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.42 : 20,710.98 = 10,112.04 : x
  2. Step 2: Convert to fraction form
    13,800.42/20,710.98 = 10,112.04/x
  3. Step 3: Cross multiply
    13,800.42x = 20,710.98 × 10,112.04
  4. Step 4: Simplify right side
    13,800.42x = 209,430,258.20
  5. Step 5: Solve for x
    x = 209,430,258.20/13,800.42
  6. Step 6: Final answer
    x = 15,175.64

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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.