Home / 13,637.28-20,423.10-9,241.40

Finding the Fourth Proportional to 13,637.28, 20,423.10 and 9,241.40

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Solution

The fourth proportional to 13,637.28, 20,423.10 and 9,241.40 is: 13,839.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.28 : 20,423.10 = 9,241.40 : x
  2. Step 2: Convert to fraction form
    13,637.28/20,423.10 = 9,241.40/x
  3. Step 3: Cross multiply
    13,637.28x = 20,423.10 × 9,241.40
  4. Step 4: Simplify right side
    13,637.28x = 188,738,036.34
  5. Step 5: Solve for x
    x = 188,738,036.34/13,637.28
  6. Step 6: Final answer
    x = 13,839.86

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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.