Home / 25,149.78-37,730.51-7,379.72

Finding the Fourth Proportional to 25,149.78, 37,730.51 and 7,379.72

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Solution

The fourth proportional to 25,149.78, 37,730.51 and 7,379.72 is: 11,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,149.78 : 37,730.51 = 7,379.72 : x
  2. Step 2: Convert to fraction form
    25,149.78/37,730.51 = 7,379.72/x
  3. Step 3: Cross multiply
    25,149.78x = 37,730.51 × 7,379.72
  4. Step 4: Simplify right side
    25,149.78x = 278,440,373.71
  5. Step 5: Solve for x
    x = 278,440,373.71/25,149.78
  6. Step 6: Final answer
    x = 11,071.28

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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.