Home / 11,431.74-15,776.25-6,715.98

Finding the Fourth Proportional to 11,431.74, 15,776.25 and 6,715.98

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Solution

The fourth proportional to 11,431.74, 15,776.25 and 6,715.98 is: 9,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.74 : 15,776.25 = 6,715.98 : x
  2. Step 2: Convert to fraction form
    11,431.74/15,776.25 = 6,715.98/x
  3. Step 3: Cross multiply
    11,431.74x = 15,776.25 × 6,715.98
  4. Step 4: Simplify right side
    11,431.74x = 105,952,979.48
  5. Step 5: Solve for x
    x = 105,952,979.48/11,431.74
  6. Step 6: Final answer
    x = 9,268.32

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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.