Home / 14,146.79-21,215.17-4,148.76

Finding the Fourth Proportional to 14,146.79, 21,215.17 and 4,148.76

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Solution

The fourth proportional to 14,146.79, 21,215.17 and 4,148.76 is: 6,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.79 : 21,215.17 = 4,148.76 : x
  2. Step 2: Convert to fraction form
    14,146.79/21,215.17 = 4,148.76/x
  3. Step 3: Cross multiply
    14,146.79x = 21,215.17 × 4,148.76
  4. Step 4: Simplify right side
    14,146.79x = 88,016,627.95
  5. Step 5: Solve for x
    x = 88,016,627.95/14,146.79
  6. Step 6: Final answer
    x = 6,221.67

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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.