Home / 9,144.36-12,619.80-5,607.09

Finding the Fourth Proportional to 9,144.36, 12,619.80 and 5,607.09

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Solution

The fourth proportional to 9,144.36, 12,619.80 and 5,607.09 is: 7,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.36 : 12,619.80 = 5,607.09 : x
  2. Step 2: Convert to fraction form
    9,144.36/12,619.80 = 5,607.09/x
  3. Step 3: Cross multiply
    9,144.36x = 12,619.80 × 5,607.09
  4. Step 4: Simplify right side
    9,144.36x = 70,760,354.38
  5. Step 5: Solve for x
    x = 70,760,354.38/9,144.36
  6. Step 6: Final answer
    x = 7,738.14

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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.