Home / 10,890.48-15,037.44-8,759.14

Finding the Fourth Proportional to 10,890.48, 15,037.44 and 8,759.14

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Solution

The fourth proportional to 10,890.48, 15,037.44 and 8,759.14 is: 12,094.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.48 : 15,037.44 = 8,759.14 : x
  2. Step 2: Convert to fraction form
    10,890.48/15,037.44 = 8,759.14/x
  3. Step 3: Cross multiply
    10,890.48x = 15,037.44 × 8,759.14
  4. Step 4: Simplify right side
    10,890.48x = 131,715,042.20
  5. Step 5: Solve for x
    x = 131,715,042.20/10,890.48
  6. Step 6: Final answer
    x = 12,094.51

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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.