Home / 11,146.02-15,381.27-6,429.66

Finding the Fourth Proportional to 11,146.02, 15,381.27 and 6,429.66

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Solution

The fourth proportional to 11,146.02, 15,381.27 and 6,429.66 is: 8,872.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.02 : 15,381.27 = 6,429.66 : x
  2. Step 2: Convert to fraction form
    11,146.02/15,381.27 = 6,429.66/x
  3. Step 3: Cross multiply
    11,146.02x = 15,381.27 × 6,429.66
  4. Step 4: Simplify right side
    11,146.02x = 98,896,336.47
  5. Step 5: Solve for x
    x = 98,896,336.47/11,146.02
  6. Step 6: Final answer
    x = 8,872.79

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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.