Home / 10,488.07-15,739.38-6,781.11

Finding the Fourth Proportional to 10,488.07, 15,739.38 and 6,781.11

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Solution

The fourth proportional to 10,488.07, 15,739.38 and 6,781.11 is: 10,176.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.07 : 15,739.38 = 6,781.11 : x
  2. Step 2: Convert to fraction form
    10,488.07/15,739.38 = 6,781.11/x
  3. Step 3: Cross multiply
    10,488.07x = 15,739.38 × 6,781.11
  4. Step 4: Simplify right side
    10,488.07x = 106,730,467.11
  5. Step 5: Solve for x
    x = 106,730,467.11/10,488.07
  6. Step 6: Final answer
    x = 10,176.37

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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.