Home / 11,453.94-15,807.41-6,418.07

Finding the Fourth Proportional to 11,453.94, 15,807.41 and 6,418.07

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Solution

The fourth proportional to 11,453.94, 15,807.41 and 6,418.07 is: 8,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.94 : 15,807.41 = 6,418.07 : x
  2. Step 2: Convert to fraction form
    11,453.94/15,807.41 = 6,418.07/x
  3. Step 3: Cross multiply
    11,453.94x = 15,807.41 × 6,418.07
  4. Step 4: Simplify right side
    11,453.94x = 101,452,952.77
  5. Step 5: Solve for x
    x = 101,452,952.77/11,453.94
  6. Step 6: Final answer
    x = 8,857.47

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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.