Home / 10,301.91-15,435.21-6,918.36

Finding the Fourth Proportional to 10,301.91, 15,435.21 and 6,918.36

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Solution

The fourth proportional to 10,301.91, 15,435.21 and 6,918.36 is: 10,365.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,301.91 : 15,435.21 = 6,918.36 : x
  2. Step 2: Convert to fraction form
    10,301.91/15,435.21 = 6,918.36/x
  3. Step 3: Cross multiply
    10,301.91x = 15,435.21 × 6,918.36
  4. Step 4: Simplify right side
    10,301.91x = 106,786,339.46
  5. Step 5: Solve for x
    x = 106,786,339.46/10,301.91
  6. Step 6: Final answer
    x = 10,365.68

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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.