Home / 15,408.25-21,263.36-8,334.67

Finding the Fourth Proportional to 15,408.25, 21,263.36 and 8,334.67

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Solution

The fourth proportional to 15,408.25, 21,263.36 and 8,334.67 is: 11,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.25 : 21,263.36 = 8,334.67 : x
  2. Step 2: Convert to fraction form
    15,408.25/21,263.36 = 8,334.67/x
  3. Step 3: Cross multiply
    15,408.25x = 21,263.36 × 8,334.67
  4. Step 4: Simplify right side
    15,408.25x = 177,223,088.69
  5. Step 5: Solve for x
    x = 177,223,088.69/15,408.25
  6. Step 6: Final answer
    x = 11,501.83

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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.