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Finding the Fourth Proportional to 12,558.35, 18,837.52 and 9,787.10

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Solution

The fourth proportional to 12,558.35, 18,837.52 and 9,787.10 is: 14,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.35 : 18,837.52 = 9,787.10 : x
  2. Step 2: Convert to fraction form
    12,558.35/18,837.52 = 9,787.10/x
  3. Step 3: Cross multiply
    12,558.35x = 18,837.52 × 9,787.10
  4. Step 4: Simplify right side
    12,558.35x = 184,364,573.34
  5. Step 5: Solve for x
    x = 184,364,573.34/12,558.35
  6. Step 6: Final answer
    x = 14,680.64

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Similar ratio
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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.