Home / 7,113.14-9,818.10-4,129.94

Finding the Fourth Proportional to 7,113.14, 9,818.10 and 4,129.94

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Solution

The fourth proportional to 7,113.14, 9,818.10 and 4,129.94 is: 5,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.14 : 9,818.10 = 4,129.94 : x
  2. Step 2: Convert to fraction form
    7,113.14/9,818.10 = 4,129.94/x
  3. Step 3: Cross multiply
    7,113.14x = 9,818.10 × 4,129.94
  4. Step 4: Simplify right side
    7,113.14x = 40,548,163.91
  5. Step 5: Solve for x
    x = 40,548,163.91/7,113.14
  6. Step 6: Final answer
    x = 5,700.46

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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.