Home / 7,923.09-10,926.66-7,115.10

Finding the Fourth Proportional to 7,923.09, 10,926.66 and 7,115.10

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Solution

The fourth proportional to 7,923.09, 10,926.66 and 7,115.10 is: 9,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.09 : 10,926.66 = 7,115.10 : x
  2. Step 2: Convert to fraction form
    7,923.09/10,926.66 = 7,115.10/x
  3. Step 3: Cross multiply
    7,923.09x = 10,926.66 × 7,115.10
  4. Step 4: Simplify right side
    7,923.09x = 77,744,278.57
  5. Step 5: Solve for x
    x = 77,744,278.57/7,923.09
  6. Step 6: Final answer
    x = 9,812.37

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Half scale
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Double scale
Find fourth proportional to 7,924.09, 10,928.04 and 7,116.10
Similar ratio
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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.