Home / 13,699.32-20,549.72-4,338.64

Finding the Fourth Proportional to 13,699.32, 20,549.72 and 4,338.64

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Solution

The fourth proportional to 13,699.32, 20,549.72 and 4,338.64 is: 6,508.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.32 : 20,549.72 = 4,338.64 : x
  2. Step 2: Convert to fraction form
    13,699.32/20,549.72 = 4,338.64/x
  3. Step 3: Cross multiply
    13,699.32x = 20,549.72 × 4,338.64
  4. Step 4: Simplify right side
    13,699.32x = 89,157,837.18
  5. Step 5: Solve for x
    x = 89,157,837.18/13,699.32
  6. Step 6: Final answer
    x = 6,508.19

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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.