Home / 12,484.91-18,730.07-3,720.53

Finding the Fourth Proportional to 12,484.91, 18,730.07 and 3,720.53

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Solution

The fourth proportional to 12,484.91, 18,730.07 and 3,720.53 is: 5,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.91 : 18,730.07 = 3,720.53 : x
  2. Step 2: Convert to fraction form
    12,484.91/18,730.07 = 3,720.53/x
  3. Step 3: Cross multiply
    12,484.91x = 18,730.07 × 3,720.53
  4. Step 4: Simplify right side
    12,484.91x = 69,685,768.73
  5. Step 5: Solve for x
    x = 69,685,768.73/12,484.91
  6. Step 6: Final answer
    x = 5,581.60

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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.