Home / 11,051.40-15,252.42-7,515.74

Finding the Fourth Proportional to 11,051.40, 15,252.42 and 7,515.74

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Solution

The fourth proportional to 11,051.40, 15,252.42 and 7,515.74 is: 10,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,051.40 : 15,252.42 = 7,515.74 : x
  2. Step 2: Convert to fraction form
    11,051.40/15,252.42 = 7,515.74/x
  3. Step 3: Cross multiply
    11,051.40x = 15,252.42 × 7,515.74
  4. Step 4: Simplify right side
    11,051.40x = 114,633,223.09
  5. Step 5: Solve for x
    x = 114,633,223.09/11,051.40
  6. Step 6: Final answer
    x = 10,372.73

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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.