Home / 12,461.16-18,654.44-12,018.12

Finding the Fourth Proportional to 12,461.16, 18,654.44 and 12,018.12

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Solution

The fourth proportional to 12,461.16, 18,654.44 and 12,018.12 is: 17,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.16 : 18,654.44 = 12,018.12 : x
  2. Step 2: Convert to fraction form
    12,461.16/18,654.44 = 12,018.12/x
  3. Step 3: Cross multiply
    12,461.16x = 18,654.44 × 12,018.12
  4. Step 4: Simplify right side
    12,461.16x = 224,191,298.45
  5. Step 5: Solve for x
    x = 224,191,298.45/12,461.16
  6. Step 6: Final answer
    x = 17,991.21

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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.