Home / 13,401.11-20,068.85-9,442.64

Finding the Fourth Proportional to 13,401.11, 20,068.85 and 9,442.64

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Solution

The fourth proportional to 13,401.11, 20,068.85 and 9,442.64 is: 14,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.11 : 20,068.85 = 9,442.64 : x
  2. Step 2: Convert to fraction form
    13,401.11/20,068.85 = 9,442.64/x
  3. Step 3: Cross multiply
    13,401.11x = 20,068.85 × 9,442.64
  4. Step 4: Simplify right side
    13,401.11x = 189,502,999.54
  5. Step 5: Solve for x
    x = 189,502,999.54/13,401.11
  6. Step 6: Final answer
    x = 14,140.84

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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.