Home / 9,123.12-12,558.96-6,760.80

Finding the Fourth Proportional to 9,123.12, 12,558.96 and 6,760.80

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Solution

The fourth proportional to 9,123.12, 12,558.96 and 6,760.80 is: 9,306.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.12 : 12,558.96 = 6,760.80 : x
  2. Step 2: Convert to fraction form
    9,123.12/12,558.96 = 6,760.80/x
  3. Step 3: Cross multiply
    9,123.12x = 12,558.96 × 6,760.80
  4. Step 4: Simplify right side
    9,123.12x = 84,908,616.77
  5. Step 5: Solve for x
    x = 84,908,616.77/9,123.12
  6. Step 6: Final answer
    x = 9,306.97

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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.