Home / 13,106.12-18,081.36-8,632.08

Finding the Fourth Proportional to 13,106.12, 18,081.36 and 8,632.08

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Solution

The fourth proportional to 13,106.12, 18,081.36 and 8,632.08 is: 11,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.12 : 18,081.36 = 8,632.08 : x
  2. Step 2: Convert to fraction form
    13,106.12/18,081.36 = 8,632.08/x
  3. Step 3: Cross multiply
    13,106.12x = 18,081.36 × 8,632.08
  4. Step 4: Simplify right side
    13,106.12x = 156,079,746.03
  5. Step 5: Solve for x
    x = 156,079,746.03/13,106.12
  6. Step 6: Final answer
    x = 11,908.93

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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.