Home / 10,001.86-13,808.37-6,649.18

Finding the Fourth Proportional to 10,001.86, 13,808.37 and 6,649.18

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Solution

The fourth proportional to 10,001.86, 13,808.37 and 6,649.18 is: 9,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.86 : 13,808.37 = 6,649.18 : x
  2. Step 2: Convert to fraction form
    10,001.86/13,808.37 = 6,649.18/x
  3. Step 3: Cross multiply
    10,001.86x = 13,808.37 × 6,649.18
  4. Step 4: Simplify right side
    10,001.86x = 91,814,337.64
  5. Step 5: Solve for x
    x = 91,814,337.64/10,001.86
  6. Step 6: Final answer
    x = 9,179.73

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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.