Home / 25,276.86-37,926.09-12,129.30

Finding the Fourth Proportional to 25,276.86, 37,926.09 and 12,129.30

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Solution

The fourth proportional to 25,276.86, 37,926.09 and 12,129.30 is: 18,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,276.86 : 37,926.09 = 12,129.30 : x
  2. Step 2: Convert to fraction form
    25,276.86/37,926.09 = 12,129.30/x
  3. Step 3: Cross multiply
    25,276.86x = 37,926.09 × 12,129.30
  4. Step 4: Simplify right side
    25,276.86x = 460,016,923.44
  5. Step 5: Solve for x
    x = 460,016,923.44/25,276.86
  6. Step 6: Final answer
    x = 18,199.13

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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.