Home / 10,904.88-15,053.80-6,427.12

Finding the Fourth Proportional to 10,904.88, 15,053.80 and 6,427.12

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Solution

The fourth proportional to 10,904.88, 15,053.80 and 6,427.12 is: 8,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.88 : 15,053.80 = 6,427.12 : x
  2. Step 2: Convert to fraction form
    10,904.88/15,053.80 = 6,427.12/x
  3. Step 3: Cross multiply
    10,904.88x = 15,053.80 × 6,427.12
  4. Step 4: Simplify right side
    10,904.88x = 96,752,579.06
  5. Step 5: Solve for x
    x = 96,752,579.06/10,904.88
  6. Step 6: Final answer
    x = 8,872.41

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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.