Home / 13,912.42-20,870.68-4,050.40

Finding the Fourth Proportional to 13,912.42, 20,870.68 and 4,050.40

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Solution

The fourth proportional to 13,912.42, 20,870.68 and 4,050.40 is: 6,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.42 : 20,870.68 = 4,050.40 : x
  2. Step 2: Convert to fraction form
    13,912.42/20,870.68 = 4,050.40/x
  3. Step 3: Cross multiply
    13,912.42x = 20,870.68 × 4,050.40
  4. Step 4: Simplify right side
    13,912.42x = 84,534,602.27
  5. Step 5: Solve for x
    x = 84,534,602.27/13,912.42
  6. Step 6: Final answer
    x = 6,076.20

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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.