Home / 12,106.49-18,159.73-5,176.13

Finding the Fourth Proportional to 12,106.49, 18,159.73 and 5,176.13

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Solution

The fourth proportional to 12,106.49, 18,159.73 and 5,176.13 is: 7,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.49 : 18,159.73 = 5,176.13 : x
  2. Step 2: Convert to fraction form
    12,106.49/18,159.73 = 5,176.13/x
  3. Step 3: Cross multiply
    12,106.49x = 18,159.73 × 5,176.13
  4. Step 4: Simplify right side
    12,106.49x = 93,997,019.51
  5. Step 5: Solve for x
    x = 93,997,019.51/12,106.49
  6. Step 6: Final answer
    x = 7,764.19

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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.