Home / 12,548.84-18,815.88-4,758.20

Finding the Fourth Proportional to 12,548.84, 18,815.88 and 4,758.20

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Solution

The fourth proportional to 12,548.84, 18,815.88 and 4,758.20 is: 7,134.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.84 : 18,815.88 = 4,758.20 : x
  2. Step 2: Convert to fraction form
    12,548.84/18,815.88 = 4,758.20/x
  3. Step 3: Cross multiply
    12,548.84x = 18,815.88 × 4,758.20
  4. Step 4: Simplify right side
    12,548.84x = 89,529,720.22
  5. Step 5: Solve for x
    x = 89,529,720.22/12,548.84
  6. Step 6: Final answer
    x = 7,134.50

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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.