Home / 11,053.14-15,247.28-7,690.63

Finding the Fourth Proportional to 11,053.14, 15,247.28 and 7,690.63

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Solution

The fourth proportional to 11,053.14, 15,247.28 and 7,690.63 is: 10,608.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,053.14 : 15,247.28 = 7,690.63 : x
  2. Step 2: Convert to fraction form
    11,053.14/15,247.28 = 7,690.63/x
  3. Step 3: Cross multiply
    11,053.14x = 15,247.28 × 7,690.63
  4. Step 4: Simplify right side
    11,053.14x = 117,261,188.99
  5. Step 5: Solve for x
    x = 117,261,188.99/11,053.14
  6. Step 6: Final answer
    x = 10,608.86

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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.