Home / 25,145.56-37,718.48-8,505.72

Finding the Fourth Proportional to 25,145.56, 37,718.48 and 8,505.72

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Solution

The fourth proportional to 25,145.56, 37,718.48 and 8,505.72 is: 12,758.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.56 : 37,718.48 = 8,505.72 : x
  2. Step 2: Convert to fraction form
    25,145.56/37,718.48 = 8,505.72/x
  3. Step 3: Cross multiply
    25,145.56x = 37,718.48 × 8,505.72
  4. Step 4: Simplify right side
    25,145.56x = 320,822,829.71
  5. Step 5: Solve for x
    x = 320,822,829.71/25,145.56
  6. Step 6: Final answer
    x = 12,758.63

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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.