Home / 12,117.03-18,175.73-7,983.51

Finding the Fourth Proportional to 12,117.03, 18,175.73 and 7,983.51

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Solution

The fourth proportional to 12,117.03, 18,175.73 and 7,983.51 is: 11,975.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.03 : 18,175.73 = 7,983.51 : x
  2. Step 2: Convert to fraction form
    12,117.03/18,175.73 = 7,983.51/x
  3. Step 3: Cross multiply
    12,117.03x = 18,175.73 × 7,983.51
  4. Step 4: Simplify right side
    12,117.03x = 145,106,082.29
  5. Step 5: Solve for x
    x = 145,106,082.29/12,117.03
  6. Step 6: Final answer
    x = 11,975.38

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.