Home / 15,140.10-20,893.14-8,767.56

Finding the Fourth Proportional to 15,140.10, 20,893.14 and 8,767.56

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Solution

The fourth proportional to 15,140.10, 20,893.14 and 8,767.56 is: 12,099.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.10 : 20,893.14 = 8,767.56 : x
  2. Step 2: Convert to fraction form
    15,140.10/20,893.14 = 8,767.56/x
  3. Step 3: Cross multiply
    15,140.10x = 20,893.14 × 8,767.56
  4. Step 4: Simplify right side
    15,140.10x = 183,181,858.54
  5. Step 5: Solve for x
    x = 183,181,858.54/15,140.10
  6. Step 6: Final answer
    x = 12,099.12

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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.