Home / 13,393.21-18,483.40-8,088.81

Finding the Fourth Proportional to 13,393.21, 18,483.40 and 8,088.81

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Solution

The fourth proportional to 13,393.21, 18,483.40 and 8,088.81 is: 11,163.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.21 : 18,483.40 = 8,088.81 : x
  2. Step 2: Convert to fraction form
    13,393.21/18,483.40 = 8,088.81/x
  3. Step 3: Cross multiply
    13,393.21x = 18,483.40 × 8,088.81
  4. Step 4: Simplify right side
    13,393.21x = 149,508,618.34
  5. Step 5: Solve for x
    x = 149,508,618.34/13,393.21
  6. Step 6: Final answer
    x = 11,163.02

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.