Home / 7,955.12-10,977.90-4,418.12

Finding the Fourth Proportional to 7,955.12, 10,977.90 and 4,418.12

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Solution

The fourth proportional to 7,955.12, 10,977.90 and 4,418.12 is: 6,096.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.12 : 10,977.90 = 4,418.12 : x
  2. Step 2: Convert to fraction form
    7,955.12/10,977.90 = 4,418.12/x
  3. Step 3: Cross multiply
    7,955.12x = 10,977.90 × 4,418.12
  4. Step 4: Simplify right side
    7,955.12x = 48,501,679.55
  5. Step 5: Solve for x
    x = 48,501,679.55/7,955.12
  6. Step 6: Final answer
    x = 6,096.91

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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.