Home / 9,122.63-12,589.22-4,930.88

Finding the Fourth Proportional to 9,122.63, 12,589.22 and 4,930.88

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Solution

The fourth proportional to 9,122.63, 12,589.22 and 4,930.88 is: 6,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.63 : 12,589.22 = 4,930.88 : x
  2. Step 2: Convert to fraction form
    9,122.63/12,589.22 = 4,930.88/x
  3. Step 3: Cross multiply
    9,122.63x = 12,589.22 × 4,930.88
  4. Step 4: Simplify right side
    9,122.63x = 62,075,882.49
  5. Step 5: Solve for x
    x = 62,075,882.49/9,122.63
  6. Step 6: Final answer
    x = 6,804.61

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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.