Home / 13,683.34-20,535-10,571.14

Finding the Fourth Proportional to 13,683.34, 20,535 and 10,571.14

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Solution

The fourth proportional to 13,683.34, 20,535 and 10,571.14 is: 15,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.34 : 20,535 = 10,571.14 : x
  2. Step 2: Convert to fraction form
    13,683.34/20,535 = 10,571.14/x
  3. Step 3: Cross multiply
    13,683.34x = 20,535 × 10,571.14
  4. Step 4: Simplify right side
    13,683.34x = 217,078,359.90
  5. Step 5: Solve for x
    x = 217,078,359.90/13,683.34
  6. Step 6: Final answer
    x = 15,864.43

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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.