Home / 11,506.80-15,878.98-6,471.22

Finding the Fourth Proportional to 11,506.80, 15,878.98 and 6,471.22

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Solution

The fourth proportional to 11,506.80, 15,878.98 and 6,471.22 is: 8,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,506.80 : 15,878.98 = 6,471.22 : x
  2. Step 2: Convert to fraction form
    11,506.80/15,878.98 = 6,471.22/x
  3. Step 3: Cross multiply
    11,506.80x = 15,878.98 × 6,471.22
  4. Step 4: Simplify right side
    11,506.80x = 102,756,372.96
  5. Step 5: Solve for x
    x = 102,756,372.96/11,506.80
  6. Step 6: Final answer
    x = 8,930.06

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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.