Home / 11,290.88-15,580.24-6,574.72

Finding the Fourth Proportional to 11,290.88, 15,580.24 and 6,574.72

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Solution

The fourth proportional to 11,290.88, 15,580.24 and 6,574.72 is: 9,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.88 : 15,580.24 = 6,574.72 : x
  2. Step 2: Convert to fraction form
    11,290.88/15,580.24 = 6,574.72/x
  3. Step 3: Cross multiply
    11,290.88x = 15,580.24 × 6,574.72
  4. Step 4: Simplify right side
    11,290.88x = 102,435,715.53
  5. Step 5: Solve for x
    x = 102,435,715.53/11,290.88
  6. Step 6: Final answer
    x = 9,072.43

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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.