Home / 10,406.24-15,609.84-5,785.76

Finding the Fourth Proportional to 10,406.24, 15,609.84 and 5,785.76

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Solution

The fourth proportional to 10,406.24, 15,609.84 and 5,785.76 is: 8,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.24 : 15,609.84 = 5,785.76 : x
  2. Step 2: Convert to fraction form
    10,406.24/15,609.84 = 5,785.76/x
  3. Step 3: Cross multiply
    10,406.24x = 15,609.84 × 5,785.76
  4. Step 4: Simplify right side
    10,406.24x = 90,314,787.88
  5. Step 5: Solve for x
    x = 90,314,787.88/10,406.24
  6. Step 6: Final answer
    x = 8,678.91

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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.