Home / 8,730.39-12,048.99-5,195.55

Finding the Fourth Proportional to 8,730.39, 12,048.99 and 5,195.55

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Solution

The fourth proportional to 8,730.39, 12,048.99 and 5,195.55 is: 7,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.39 : 12,048.99 = 5,195.55 : x
  2. Step 2: Convert to fraction form
    8,730.39/12,048.99 = 5,195.55/x
  3. Step 3: Cross multiply
    8,730.39x = 12,048.99 × 5,195.55
  4. Step 4: Simplify right side
    8,730.39x = 62,601,129.99
  5. Step 5: Solve for x
    x = 62,601,129.99/8,730.39
  6. Step 6: Final answer
    x = 7,170.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.