Home / 15,771.80-23,657.68-5,915.72

Finding the Fourth Proportional to 15,771.80, 23,657.68 and 5,915.72

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Solution

The fourth proportional to 15,771.80, 23,657.68 and 5,915.72 is: 8,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.80 : 23,657.68 = 5,915.72 : x
  2. Step 2: Convert to fraction form
    15,771.80/23,657.68 = 5,915.72/x
  3. Step 3: Cross multiply
    15,771.80x = 23,657.68 × 5,915.72
  4. Step 4: Simplify right side
    15,771.80x = 139,952,210.73
  5. Step 5: Solve for x
    x = 139,952,210.73/15,771.80
  6. Step 6: Final answer
    x = 8,873.57

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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.