Home / 12,418.10-18,663.60-10,814.30

Finding the Fourth Proportional to 12,418.10, 18,663.60 and 10,814.30

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Solution

The fourth proportional to 12,418.10, 18,663.60 and 10,814.30 is: 16,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.10 : 18,663.60 = 10,814.30 : x
  2. Step 2: Convert to fraction form
    12,418.10/18,663.60 = 10,814.30/x
  3. Step 3: Cross multiply
    12,418.10x = 18,663.60 × 10,814.30
  4. Step 4: Simplify right side
    12,418.10x = 201,833,769.48
  5. Step 5: Solve for x
    x = 201,833,769.48/12,418.10
  6. Step 6: Final answer
    x = 16,253.19

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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.