Home / 12,371.10-18,502.65-11,064.30

Finding the Fourth Proportional to 12,371.10, 18,502.65 and 11,064.30

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Solution

The fourth proportional to 12,371.10, 18,502.65 and 11,064.30 is: 16,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.10 : 18,502.65 = 11,064.30 : x
  2. Step 2: Convert to fraction form
    12,371.10/18,502.65 = 11,064.30/x
  3. Step 3: Cross multiply
    12,371.10x = 18,502.65 × 11,064.30
  4. Step 4: Simplify right side
    12,371.10x = 204,718,870.40
  5. Step 5: Solve for x
    x = 204,718,870.40/12,371.10
  6. Step 6: Final answer
    x = 16,548.15

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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.