Home / 12,481.08-18,725.28-4,690.50

Finding the Fourth Proportional to 12,481.08, 18,725.28 and 4,690.50

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Solution

The fourth proportional to 12,481.08, 18,725.28 and 4,690.50 is: 7,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.08 : 18,725.28 = 4,690.50 : x
  2. Step 2: Convert to fraction form
    12,481.08/18,725.28 = 4,690.50/x
  3. Step 3: Cross multiply
    12,481.08x = 18,725.28 × 4,690.50
  4. Step 4: Simplify right side
    12,481.08x = 87,830,925.84
  5. Step 5: Solve for x
    x = 87,830,925.84/12,481.08
  6. Step 6: Final answer
    x = 7,037.13

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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.