Home / 12,554.12-18,819.99-4,768.40

Finding the Fourth Proportional to 12,554.12, 18,819.99 and 4,768.40

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Solution

The fourth proportional to 12,554.12, 18,819.99 and 4,768.40 is: 7,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.12 : 18,819.99 = 4,768.40 : x
  2. Step 2: Convert to fraction form
    12,554.12/18,819.99 = 4,768.40/x
  3. Step 3: Cross multiply
    12,554.12x = 18,819.99 × 4,768.40
  4. Step 4: Simplify right side
    12,554.12x = 89,741,240.32
  5. Step 5: Solve for x
    x = 89,741,240.32/12,554.12
  6. Step 6: Final answer
    x = 7,148.35

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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.