Home / 10,261.36-15,395.28-4,420.72

Finding the Fourth Proportional to 10,261.36, 15,395.28 and 4,420.72

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Solution

The fourth proportional to 10,261.36, 15,395.28 and 4,420.72 is: 6,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,261.36 : 15,395.28 = 4,420.72 : x
  2. Step 2: Convert to fraction form
    10,261.36/15,395.28 = 4,420.72/x
  3. Step 3: Cross multiply
    10,261.36x = 15,395.28 × 4,420.72
  4. Step 4: Simplify right side
    10,261.36x = 68,058,222.20
  5. Step 5: Solve for x
    x = 68,058,222.20/10,261.36
  6. Step 6: Final answer
    x = 6,632.48

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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.