Home / 11,210.55-15,469.92-6,429.48

Finding the Fourth Proportional to 11,210.55, 15,469.92 and 6,429.48

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Solution

The fourth proportional to 11,210.55, 15,469.92 and 6,429.48 is: 8,872.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.55 : 15,469.92 = 6,429.48 : x
  2. Step 2: Convert to fraction form
    11,210.55/15,469.92 = 6,429.48/x
  3. Step 3: Cross multiply
    11,210.55x = 15,469.92 × 6,429.48
  4. Step 4: Simplify right side
    11,210.55x = 99,463,541.24
  5. Step 5: Solve for x
    x = 99,463,541.24/11,210.55
  6. Step 6: Final answer
    x = 8,872.32

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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.