Home / 12,143.70-18,210.53-4,244.55

Finding the Fourth Proportional to 12,143.70, 18,210.53 and 4,244.55

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Solution

The fourth proportional to 12,143.70, 18,210.53 and 4,244.55 is: 6,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.70 : 18,210.53 = 4,244.55 : x
  2. Step 2: Convert to fraction form
    12,143.70/18,210.53 = 4,244.55/x
  3. Step 3: Cross multiply
    12,143.70x = 18,210.53 × 4,244.55
  4. Step 4: Simplify right side
    12,143.70x = 77,295,483.89
  5. Step 5: Solve for x
    x = 77,295,483.89/12,143.70
  6. Step 6: Final answer
    x = 6,365.07

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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.