Home / 13,077.10-18,039.15-8,288.26

Finding the Fourth Proportional to 13,077.10, 18,039.15 and 8,288.26

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Solution

The fourth proportional to 13,077.10, 18,039.15 and 8,288.26 is: 11,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.10 : 18,039.15 = 8,288.26 : x
  2. Step 2: Convert to fraction form
    13,077.10/18,039.15 = 8,288.26/x
  3. Step 3: Cross multiply
    13,077.10x = 18,039.15 × 8,288.26
  4. Step 4: Simplify right side
    13,077.10x = 149,513,165.38
  5. Step 5: Solve for x
    x = 149,513,165.38/13,077.10
  6. Step 6: Final answer
    x = 11,433.21

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Half scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.