Home / 9,122.09-12,588.49-4,930.34

Finding the Fourth Proportional to 9,122.09, 12,588.49 and 4,930.34

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Solution

The fourth proportional to 9,122.09, 12,588.49 and 4,930.34 is: 6,803.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.09 : 12,588.49 = 4,930.34 : x
  2. Step 2: Convert to fraction form
    9,122.09/12,588.49 = 4,930.34/x
  3. Step 3: Cross multiply
    9,122.09x = 12,588.49 × 4,930.34
  4. Step 4: Simplify right side
    9,122.09x = 62,065,535.79
  5. Step 5: Solve for x
    x = 62,065,535.79/9,122.09
  6. Step 6: Final answer
    x = 6,803.87

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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.