Home / 7,114.11-9,818.13-3,927.98

Finding the Fourth Proportional to 7,114.11, 9,818.13 and 3,927.98

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Solution

The fourth proportional to 7,114.11, 9,818.13 and 3,927.98 is: 5,420.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.11 : 9,818.13 = 3,927.98 : x
  2. Step 2: Convert to fraction form
    7,114.11/9,818.13 = 3,927.98/x
  3. Step 3: Cross multiply
    7,114.11x = 9,818.13 × 3,927.98
  4. Step 4: Simplify right side
    7,114.11x = 38,565,418.28
  5. Step 5: Solve for x
    x = 38,565,418.28/7,114.11
  6. Step 6: Final answer
    x = 5,420.98

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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.