Home / 13,079.10-18,047.07-8,604.66

Finding the Fourth Proportional to 13,079.10, 18,047.07 and 8,604.66

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Solution

The fourth proportional to 13,079.10, 18,047.07 and 8,604.66 is: 11,873.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.10 : 18,047.07 = 8,604.66 : x
  2. Step 2: Convert to fraction form
    13,079.10/18,047.07 = 8,604.66/x
  3. Step 3: Cross multiply
    13,079.10x = 18,047.07 × 8,604.66
  4. Step 4: Simplify right side
    13,079.10x = 155,288,901.35
  5. Step 5: Solve for x
    x = 155,288,901.35/13,079.10
  6. Step 6: Final answer
    x = 11,873.06

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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.