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Finding the Fourth Proportional to 15,877.92, 23,816.88 and 4,784.64

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Solution

The fourth proportional to 15,877.92, 23,816.88 and 4,784.64 is: 7,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.92 : 23,816.88 = 4,784.64 : x
  2. Step 2: Convert to fraction form
    15,877.92/23,816.88 = 4,784.64/x
  3. Step 3: Cross multiply
    15,877.92x = 23,816.88 × 4,784.64
  4. Step 4: Simplify right side
    15,877.92x = 113,955,196.72
  5. Step 5: Solve for x
    x = 113,955,196.72/15,877.92
  6. Step 6: Final answer
    x = 7,176.96

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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.