Home / 7,985.06-11,018.68-4,448.20

Finding the Fourth Proportional to 7,985.06, 11,018.68 and 4,448.20

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Solution

The fourth proportional to 7,985.06, 11,018.68 and 4,448.20 is: 6,138.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.06 : 11,018.68 = 4,448.20 : x
  2. Step 2: Convert to fraction form
    7,985.06/11,018.68 = 4,448.20/x
  3. Step 3: Cross multiply
    7,985.06x = 11,018.68 × 4,448.20
  4. Step 4: Simplify right side
    7,985.06x = 49,013,292.38
  5. Step 5: Solve for x
    x = 49,013,292.38/7,985.06
  6. Step 6: Final answer
    x = 6,138.12

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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.