Home / 13,688.18-20,433.26-12,027.43

Finding the Fourth Proportional to 13,688.18, 20,433.26 and 12,027.43

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Solution

The fourth proportional to 13,688.18, 20,433.26 and 12,027.43 is: 17,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.18 : 20,433.26 = 12,027.43 : x
  2. Step 2: Convert to fraction form
    13,688.18/20,433.26 = 12,027.43/x
  3. Step 3: Cross multiply
    13,688.18x = 20,433.26 × 12,027.43
  4. Step 4: Simplify right side
    13,688.18x = 245,759,442.02
  5. Step 5: Solve for x
    x = 245,759,442.02/13,688.18
  6. Step 6: Final answer
    x = 17,954.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.