Home / 10,946.20-16,421.64-4,020.70

Finding the Fourth Proportional to 10,946.20, 16,421.64 and 4,020.70

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Solution

The fourth proportional to 10,946.20, 16,421.64 and 4,020.70 is: 6,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,946.20 : 16,421.64 = 4,020.70 : x
  2. Step 2: Convert to fraction form
    10,946.20/16,421.64 = 4,020.70/x
  3. Step 3: Cross multiply
    10,946.20x = 16,421.64 × 4,020.70
  4. Step 4: Simplify right side
    10,946.20x = 66,026,487.95
  5. Step 5: Solve for x
    x = 66,026,487.95/10,946.20
  6. Step 6: Final answer
    x = 6,031.91

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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.