Home / 15,447.20-21,317.24-8,373.67

Finding the Fourth Proportional to 15,447.20, 21,317.24 and 8,373.67

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Solution

The fourth proportional to 15,447.20, 21,317.24 and 8,373.67 is: 11,555.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.20 : 21,317.24 = 8,373.67 : x
  2. Step 2: Convert to fraction form
    15,447.20/21,317.24 = 8,373.67/x
  3. Step 3: Cross multiply
    15,447.20x = 21,317.24 × 8,373.67
  4. Step 4: Simplify right side
    15,447.20x = 178,503,500.71
  5. Step 5: Solve for x
    x = 178,503,500.71/15,447.20
  6. Step 6: Final answer
    x = 11,555.72

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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.