Home / 10,507.20-15,741.60-8,548.80

Finding the Fourth Proportional to 10,507.20, 15,741.60 and 8,548.80

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Solution

The fourth proportional to 10,507.20, 15,741.60 and 8,548.80 is: 12,807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.20 : 15,741.60 = 8,548.80 : x
  2. Step 2: Convert to fraction form
    10,507.20/15,741.60 = 8,548.80/x
  3. Step 3: Cross multiply
    10,507.20x = 15,741.60 × 8,548.80
  4. Step 4: Simplify right side
    10,507.20x = 134,571,790.08
  5. Step 5: Solve for x
    x = 134,571,790.08/10,507.20
  6. Step 6: Final answer
    x = 12,807.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.