Home / 9,639.18-13,302.59-5,861.75

Finding the Fourth Proportional to 9,639.18, 13,302.59 and 5,861.75

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Solution

The fourth proportional to 9,639.18, 13,302.59 and 5,861.75 is: 8,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.18 : 13,302.59 = 5,861.75 : x
  2. Step 2: Convert to fraction form
    9,639.18/13,302.59 = 5,861.75/x
  3. Step 3: Cross multiply
    9,639.18x = 13,302.59 × 5,861.75
  4. Step 4: Simplify right side
    9,639.18x = 77,976,361.11
  5. Step 5: Solve for x
    x = 77,976,361.11/9,639.18
  6. Step 6: Final answer
    x = 8,089.52

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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.