Home / 10,022.47-13,837.29-6,438.88

Finding the Fourth Proportional to 10,022.47, 13,837.29 and 6,438.88

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Solution

The fourth proportional to 10,022.47, 13,837.29 and 6,438.88 is: 8,889.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,022.47 : 13,837.29 = 6,438.88 : x
  2. Step 2: Convert to fraction form
    10,022.47/13,837.29 = 6,438.88/x
  3. Step 3: Cross multiply
    10,022.47x = 13,837.29 × 6,438.88
  4. Step 4: Simplify right side
    10,022.47x = 89,096,649.84
  5. Step 5: Solve for x
    x = 89,096,649.84/10,022.47
  6. Step 6: Final answer
    x = 8,889.69

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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.