Home / 12,554.62-18,820.74-4,768.90

Finding the Fourth Proportional to 12,554.62, 18,820.74 and 4,768.90

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Solution

The fourth proportional to 12,554.62, 18,820.74 and 4,768.90 is: 7,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.62 : 18,820.74 = 4,768.90 : x
  2. Step 2: Convert to fraction form
    12,554.62/18,820.74 = 4,768.90/x
  3. Step 3: Cross multiply
    12,554.62x = 18,820.74 × 4,768.90
  4. Step 4: Simplify right side
    12,554.62x = 89,754,226.99
  5. Step 5: Solve for x
    x = 89,754,226.99/12,554.62
  6. Step 6: Final answer
    x = 7,149.10

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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.