Home / 13,548.12-18,699.32-8,244.66

Finding the Fourth Proportional to 13,548.12, 18,699.32 and 8,244.66

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Solution

The fourth proportional to 13,548.12, 18,699.32 and 8,244.66 is: 11,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.12 : 18,699.32 = 8,244.66 : x
  2. Step 2: Convert to fraction form
    13,548.12/18,699.32 = 8,244.66/x
  3. Step 3: Cross multiply
    13,548.12x = 18,699.32 × 8,244.66
  4. Step 4: Simplify right side
    13,548.12x = 154,169,535.63
  5. Step 5: Solve for x
    x = 154,169,535.63/13,548.12
  6. Step 6: Final answer
    x = 11,379.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.