Home / 9,882.58-13,639.18-5,903.68

Finding the Fourth Proportional to 9,882.58, 13,639.18 and 5,903.68

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Solution

The fourth proportional to 9,882.58, 13,639.18 and 5,903.68 is: 8,147.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,882.58 : 13,639.18 = 5,903.68 : x
  2. Step 2: Convert to fraction form
    9,882.58/13,639.18 = 5,903.68/x
  3. Step 3: Cross multiply
    9,882.58x = 13,639.18 × 5,903.68
  4. Step 4: Simplify right side
    9,882.58x = 80,521,354.18
  5. Step 5: Solve for x
    x = 80,521,354.18/9,882.58
  6. Step 6: Final answer
    x = 8,147.81

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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.