Home / 13,862.81-19,132.67-8,202.53

Finding the Fourth Proportional to 13,862.81, 19,132.67 and 8,202.53

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Solution

The fourth proportional to 13,862.81, 19,132.67 and 8,202.53 is: 11,320.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.81 : 19,132.67 = 8,202.53 : x
  2. Step 2: Convert to fraction form
    13,862.81/19,132.67 = 8,202.53/x
  3. Step 3: Cross multiply
    13,862.81x = 19,132.67 × 8,202.53
  4. Step 4: Simplify right side
    13,862.81x = 156,936,299.66
  5. Step 5: Solve for x
    x = 156,936,299.66/13,862.81
  6. Step 6: Final answer
    x = 11,320.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.