Home / 13,909.40-20,868.56-4,049.27

Finding the Fourth Proportional to 13,909.40, 20,868.56 and 4,049.27

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Solution

The fourth proportional to 13,909.40, 20,868.56 and 4,049.27 is: 6,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.40 : 20,868.56 = 4,049.27 : x
  2. Step 2: Convert to fraction form
    13,909.40/20,868.56 = 4,049.27/x
  3. Step 3: Cross multiply
    13,909.40x = 20,868.56 × 4,049.27
  4. Step 4: Simplify right side
    13,909.40x = 84,502,402.80
  5. Step 5: Solve for x
    x = 84,502,402.80/13,909.40
  6. Step 6: Final answer
    x = 6,075.20

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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.