Home / 8,890.24-13,326.72-7,911.04

Finding the Fourth Proportional to 8,890.24, 13,326.72 and 7,911.04

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Solution

The fourth proportional to 8,890.24, 13,326.72 and 7,911.04 is: 11,858.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.24 : 13,326.72 = 7,911.04 : x
  2. Step 2: Convert to fraction form
    8,890.24/13,326.72 = 7,911.04/x
  3. Step 3: Cross multiply
    8,890.24x = 13,326.72 × 7,911.04
  4. Step 4: Simplify right side
    8,890.24x = 105,428,214.99
  5. Step 5: Solve for x
    x = 105,428,214.99/8,890.24
  6. Step 6: Final answer
    x = 11,858.87

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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.