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Finding the Fourth Proportional to 10,392.08, 15,591 and 5,778.32

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Solution

The fourth proportional to 10,392.08, 15,591 and 5,778.32 is: 8,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392.08 : 15,591 = 5,778.32 : x
  2. Step 2: Convert to fraction form
    10,392.08/15,591 = 5,778.32/x
  3. Step 3: Cross multiply
    10,392.08x = 15,591 × 5,778.32
  4. Step 4: Simplify right side
    10,392.08x = 90,089,787.12
  5. Step 5: Solve for x
    x = 90,089,787.12/10,392.08
  6. Step 6: Final answer
    x = 8,669.08

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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.