Home / 9,885.43-13,639.53-6,353.47

Finding the Fourth Proportional to 9,885.43, 13,639.53 and 6,353.47

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Solution

The fourth proportional to 9,885.43, 13,639.53 and 6,353.47 is: 8,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.43 : 13,639.53 = 6,353.47 : x
  2. Step 2: Convert to fraction form
    9,885.43/13,639.53 = 6,353.47/x
  3. Step 3: Cross multiply
    9,885.43x = 13,639.53 × 6,353.47
  4. Step 4: Simplify right side
    9,885.43x = 86,658,344.67
  5. Step 5: Solve for x
    x = 86,658,344.67/9,885.43
  6. Step 6: Final answer
    x = 8,766.27

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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.