Home / 11,551.66-15,941.10-6,515.89

Finding the Fourth Proportional to 11,551.66, 15,941.10 and 6,515.89

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Solution

The fourth proportional to 11,551.66, 15,941.10 and 6,515.89 is: 8,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.66 : 15,941.10 = 6,515.89 : x
  2. Step 2: Convert to fraction form
    11,551.66/15,941.10 = 6,515.89/x
  3. Step 3: Cross multiply
    11,551.66x = 15,941.10 × 6,515.89
  4. Step 4: Simplify right side
    11,551.66x = 103,870,454.08
  5. Step 5: Solve for x
    x = 103,870,454.08/11,551.66
  6. Step 6: Final answer
    x = 8,991.82

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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.