Home / 13,244.49-18,270.50-8,207.10

Finding the Fourth Proportional to 13,244.49, 18,270.50 and 8,207.10

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Solution

The fourth proportional to 13,244.49, 18,270.50 and 8,207.10 is: 11,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.49 : 18,270.50 = 8,207.10 : x
  2. Step 2: Convert to fraction form
    13,244.49/18,270.50 = 8,207.10/x
  3. Step 3: Cross multiply
    13,244.49x = 18,270.50 × 8,207.10
  4. Step 4: Simplify right side
    13,244.49x = 149,947,779.51
  5. Step 5: Solve for x
    x = 149,947,779.51/13,244.49
  6. Step 6: Final answer
    x = 11,321.52

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Half scale
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Double scale
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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.