Home / 13,106.58-18,080.91-7,798.38

Finding the Fourth Proportional to 13,106.58, 18,080.91 and 7,798.38

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Solution

The fourth proportional to 13,106.58, 18,080.91 and 7,798.38 is: 10,758.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.58 : 18,080.91 = 7,798.38 : x
  2. Step 2: Convert to fraction form
    13,106.58/18,080.91 = 7,798.38/x
  3. Step 3: Cross multiply
    13,106.58x = 18,080.91 × 7,798.38
  4. Step 4: Simplify right side
    13,106.58x = 141,001,806.93
  5. Step 5: Solve for x
    x = 141,001,806.93/13,106.58
  6. Step 6: Final answer
    x = 10,758.09

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Half scale
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Double scale
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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.