Home / 6,921,018.71-9,481,636.99-6,662,259.83

Finding the Fourth Proportional to 6,921,018.71, 9,481,636.99 and 6,662,259.83

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Solution

The fourth proportional to 6,921,018.71, 9,481,636.99 and 6,662,259.83 is: 9,127,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921,018.71 : 9,481,636.99 = 6,662,259.83 : x
  2. Step 2: Convert to fraction form
    6,921,018.71/9,481,636.99 = 6,662,259.83/x
  3. Step 3: Cross multiply
    6,921,018.71x = 9,481,636.99 × 6,662,259.83
  4. Step 4: Simplify right side
    6,921,018.71x = 63,169,129,241,119.12
  5. Step 5: Solve for x
    x = 63,169,129,241,119.12/6,921,018.71
  6. Step 6: Final answer
    x = 9,127,143.26

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.