Home / 12,445.03-18,663.67-4,123.18

Finding the Fourth Proportional to 12,445.03, 18,663.67 and 4,123.18

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Solution

The fourth proportional to 12,445.03, 18,663.67 and 4,123.18 is: 6,183.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.03 : 18,663.67 = 4,123.18 : x
  2. Step 2: Convert to fraction form
    12,445.03/18,663.67 = 4,123.18/x
  3. Step 3: Cross multiply
    12,445.03x = 18,663.67 × 4,123.18
  4. Step 4: Simplify right side
    12,445.03x = 76,953,670.87
  5. Step 5: Solve for x
    x = 76,953,670.87/12,445.03
  6. Step 6: Final answer
    x = 6,183.49

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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.