Home / 10,516.01-15,776.28-3,120.98

Finding the Fourth Proportional to 10,516.01, 15,776.28 and 3,120.98

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Solution

The fourth proportional to 10,516.01, 15,776.28 and 3,120.98 is: 4,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.01 : 15,776.28 = 3,120.98 : x
  2. Step 2: Convert to fraction form
    10,516.01/15,776.28 = 3,120.98/x
  3. Step 3: Cross multiply
    10,516.01x = 15,776.28 × 3,120.98
  4. Step 4: Simplify right side
    10,516.01x = 49,237,493.80
  5. Step 5: Solve for x
    x = 49,237,493.80/10,516.01
  6. Step 6: Final answer
    x = 4,682.14

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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.