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Finding the Fourth Proportional to 25,159.68, 37,739.52 and 8,519.76

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Solution

The fourth proportional to 25,159.68, 37,739.52 and 8,519.76 is: 12,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,159.68 : 37,739.52 = 8,519.76 : x
  2. Step 2: Convert to fraction form
    25,159.68/37,739.52 = 8,519.76/x
  3. Step 3: Cross multiply
    25,159.68x = 37,739.52 × 8,519.76
  4. Step 4: Simplify right side
    25,159.68x = 321,531,652.92
  5. Step 5: Solve for x
    x = 321,531,652.92/25,159.68
  6. Step 6: Final answer
    x = 12,779.64

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1.5x scale

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.