Home / 13,435.13-20,156.11-7,893.16

Finding the Fourth Proportional to 13,435.13, 20,156.11 and 7,893.16

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Solution

The fourth proportional to 13,435.13, 20,156.11 and 7,893.16 is: 11,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.13 : 20,156.11 = 7,893.16 : x
  2. Step 2: Convert to fraction form
    13,435.13/20,156.11 = 7,893.16/x
  3. Step 3: Cross multiply
    13,435.13x = 20,156.11 × 7,893.16
  4. Step 4: Simplify right side
    13,435.13x = 159,095,401.21
  5. Step 5: Solve for x
    x = 159,095,401.21/13,435.13
  6. Step 6: Final answer
    x = 11,841.75

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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.