Home / 9,211.32-13,816.91-4,278.22

Finding the Fourth Proportional to 9,211.32, 13,816.91 and 4,278.22

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Solution

The fourth proportional to 9,211.32, 13,816.91 and 4,278.22 is: 6,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.32 : 13,816.91 = 4,278.22 : x
  2. Step 2: Convert to fraction form
    9,211.32/13,816.91 = 4,278.22/x
  3. Step 3: Cross multiply
    9,211.32x = 13,816.91 × 4,278.22
  4. Step 4: Simplify right side
    9,211.32x = 59,111,756.85
  5. Step 5: Solve for x
    x = 59,111,756.85/9,211.32
  6. Step 6: Final answer
    x = 6,417.29

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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.