Home / 13,388.86-20,088.15-4,624.66

Finding the Fourth Proportional to 13,388.86, 20,088.15 and 4,624.66

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Solution

The fourth proportional to 13,388.86, 20,088.15 and 4,624.66 is: 6,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.86 : 20,088.15 = 4,624.66 : x
  2. Step 2: Convert to fraction form
    13,388.86/20,088.15 = 4,624.66/x
  3. Step 3: Cross multiply
    13,388.86x = 20,088.15 × 4,624.66
  4. Step 4: Simplify right side
    13,388.86x = 92,900,863.78
  5. Step 5: Solve for x
    x = 92,900,863.78/13,388.86
  6. Step 6: Final answer
    x = 6,938.67

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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.