Home / 13,554.66-18,699.72-9,079.86

Finding the Fourth Proportional to 13,554.66, 18,699.72 and 9,079.86

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Solution

The fourth proportional to 13,554.66, 18,699.72 and 9,079.86 is: 12,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.66 : 18,699.72 = 9,079.86 : x
  2. Step 2: Convert to fraction form
    13,554.66/18,699.72 = 9,079.86/x
  3. Step 3: Cross multiply
    13,554.66x = 18,699.72 × 9,079.86
  4. Step 4: Simplify right side
    13,554.66x = 169,790,839.64
  5. Step 5: Solve for x
    x = 169,790,839.64/13,554.66
  6. Step 6: Final answer
    x = 12,526.38

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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.