Home / 9,139.36-13,709.52-2,899.85

Finding the Fourth Proportional to 9,139.36, 13,709.52 and 2,899.85

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Solution

The fourth proportional to 9,139.36, 13,709.52 and 2,899.85 is: 4,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.36 : 13,709.52 = 2,899.85 : x
  2. Step 2: Convert to fraction form
    9,139.36/13,709.52 = 2,899.85/x
  3. Step 3: Cross multiply
    9,139.36x = 13,709.52 × 2,899.85
  4. Step 4: Simplify right side
    9,139.36x = 39,755,551.57
  5. Step 5: Solve for x
    x = 39,755,551.57/9,139.36
  6. Step 6: Final answer
    x = 4,349.93

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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.