Home / 15,989.26-22,065.24-8,915.74

Finding the Fourth Proportional to 15,989.26, 22,065.24 and 8,915.74

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Solution

The fourth proportional to 15,989.26, 22,065.24 and 8,915.74 is: 12,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.26 : 22,065.24 = 8,915.74 : x
  2. Step 2: Convert to fraction form
    15,989.26/22,065.24 = 8,915.74/x
  3. Step 3: Cross multiply
    15,989.26x = 22,065.24 × 8,915.74
  4. Step 4: Simplify right side
    15,989.26x = 196,727,942.88
  5. Step 5: Solve for x
    x = 196,727,942.88/15,989.26
  6. Step 6: Final answer
    x = 12,303.76

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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.