Home / 10,306.89-15,438.45-6,977.19

Finding the Fourth Proportional to 10,306.89, 15,438.45 and 6,977.19

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Solution

The fourth proportional to 10,306.89, 15,438.45 and 6,977.19 is: 10,450.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.89 : 15,438.45 = 6,977.19 : x
  2. Step 2: Convert to fraction form
    10,306.89/15,438.45 = 6,977.19/x
  3. Step 3: Cross multiply
    10,306.89x = 15,438.45 × 6,977.19
  4. Step 4: Simplify right side
    10,306.89x = 107,716,998.96
  5. Step 5: Solve for x
    x = 107,716,998.96/10,306.89
  6. Step 6: Final answer
    x = 10,450.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.