Home / 8,330.51-12,495.78-2,487.12

Finding the Fourth Proportional to 8,330.51, 12,495.78 and 2,487.12

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Solution

The fourth proportional to 8,330.51, 12,495.78 and 2,487.12 is: 3,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.51 : 12,495.78 = 2,487.12 : x
  2. Step 2: Convert to fraction form
    8,330.51/12,495.78 = 2,487.12/x
  3. Step 3: Cross multiply
    8,330.51x = 12,495.78 × 2,487.12
  4. Step 4: Simplify right side
    8,330.51x = 31,078,504.35
  5. Step 5: Solve for x
    x = 31,078,504.35/8,330.51
  6. Step 6: Final answer
    x = 3,730.69

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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.