Home / 9,639.26-13,302.86-5,861.72

Finding the Fourth Proportional to 9,639.26, 13,302.86 and 5,861.72

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Solution

The fourth proportional to 9,639.26, 13,302.86 and 5,861.72 is: 8,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.26 : 13,302.86 = 5,861.72 : x
  2. Step 2: Convert to fraction form
    9,639.26/13,302.86 = 5,861.72/x
  3. Step 3: Cross multiply
    9,639.26x = 13,302.86 × 5,861.72
  4. Step 4: Simplify right side
    9,639.26x = 77,977,544.70
  5. Step 5: Solve for x
    x = 77,977,544.70/9,639.26
  6. Step 6: Final answer
    x = 8,089.58

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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.