Home / 10,415.47-15,625.03-6,721.26

Finding the Fourth Proportional to 10,415.47, 15,625.03 and 6,721.26

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Solution

The fourth proportional to 10,415.47, 15,625.03 and 6,721.26 is: 10,083.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.47 : 15,625.03 = 6,721.26 : x
  2. Step 2: Convert to fraction form
    10,415.47/15,625.03 = 6,721.26/x
  3. Step 3: Cross multiply
    10,415.47x = 15,625.03 × 6,721.26
  4. Step 4: Simplify right side
    10,415.47x = 105,019,872.33
  5. Step 5: Solve for x
    x = 105,019,872.33/10,415.47
  6. Step 6: Final answer
    x = 10,083.07

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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.