Home / 13,438.15-20,157.32-7,593.39

Finding the Fourth Proportional to 13,438.15, 20,157.32 and 7,593.39

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Solution

The fourth proportional to 13,438.15, 20,157.32 and 7,593.39 is: 11,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.15 : 20,157.32 = 7,593.39 : x
  2. Step 2: Convert to fraction form
    13,438.15/20,157.32 = 7,593.39/x
  3. Step 3: Cross multiply
    13,438.15x = 20,157.32 × 7,593.39
  4. Step 4: Simplify right side
    13,438.15x = 153,062,411.10
  5. Step 5: Solve for x
    x = 153,062,411.10/13,438.15
  6. Step 6: Final answer
    x = 11,390.14

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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.