Home / 8,960.89-13,412.58-4,790.47

Finding the Fourth Proportional to 8,960.89, 13,412.58 and 4,790.47

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Solution

The fourth proportional to 8,960.89, 13,412.58 and 4,790.47 is: 7,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.89 : 13,412.58 = 4,790.47 : x
  2. Step 2: Convert to fraction form
    8,960.89/13,412.58 = 4,790.47/x
  3. Step 3: Cross multiply
    8,960.89x = 13,412.58 × 4,790.47
  4. Step 4: Simplify right side
    8,960.89x = 64,252,562.11
  5. Step 5: Solve for x
    x = 64,252,562.11/8,960.89
  6. Step 6: Final answer
    x = 7,170.33

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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.