Home / 11,455.37-15,807.02-6,418.43

Finding the Fourth Proportional to 11,455.37, 15,807.02 and 6,418.43

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Solution

The fourth proportional to 11,455.37, 15,807.02 and 6,418.43 is: 8,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.37 : 15,807.02 = 6,418.43 : x
  2. Step 2: Convert to fraction form
    11,455.37/15,807.02 = 6,418.43/x
  3. Step 3: Cross multiply
    11,455.37x = 15,807.02 × 6,418.43
  4. Step 4: Simplify right side
    11,455.37x = 101,456,306.94
  5. Step 5: Solve for x
    x = 101,456,306.94/11,455.37
  6. Step 6: Final answer
    x = 8,856.66

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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.