Home / 6,921,015.21-9,481,632.20-6,662,256.33

Finding the Fourth Proportional to 6,921,015.21, 9,481,632.20 and 6,662,256.33

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Solution

The fourth proportional to 6,921,015.21, 9,481,632.20 and 6,662,256.33 is: 9,127,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921,015.21 : 9,481,632.20 = 6,662,256.33 : x
  2. Step 2: Convert to fraction form
    6,921,015.21/9,481,632.20 = 6,662,256.33/x
  3. Step 3: Cross multiply
    6,921,015.21x = 9,481,632.20 × 6,662,256.33
  4. Step 4: Simplify right side
    6,921,015.21x = 63,169,064,159,837.47
  5. Step 5: Solve for x
    x = 63,169,064,159,837.47/6,921,015.21
  6. Step 6: Final answer
    x = 9,127,138.47

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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.