Home / 13,321.22-19,985.08-6,996.35

Finding the Fourth Proportional to 13,321.22, 19,985.08 and 6,996.35

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Solution

The fourth proportional to 13,321.22, 19,985.08 and 6,996.35 is: 10,496.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.22 : 19,985.08 = 6,996.35 : x
  2. Step 2: Convert to fraction form
    13,321.22/19,985.08 = 6,996.35/x
  3. Step 3: Cross multiply
    13,321.22x = 19,985.08 × 6,996.35
  4. Step 4: Simplify right side
    13,321.22x = 139,822,603.84
  5. Step 5: Solve for x
    x = 139,822,603.84/13,321.22
  6. Step 6: Final answer
    x = 10,496.23

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.