Home / 12,368.78-18,554.90-4,049.45

Finding the Fourth Proportional to 12,368.78, 18,554.90 and 4,049.45

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Solution

The fourth proportional to 12,368.78, 18,554.90 and 4,049.45 is: 6,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.78 : 18,554.90 = 4,049.45 : x
  2. Step 2: Convert to fraction form
    12,368.78/18,554.90 = 4,049.45/x
  3. Step 3: Cross multiply
    12,368.78x = 18,554.90 × 4,049.45
  4. Step 4: Simplify right side
    12,368.78x = 75,137,196.32
  5. Step 5: Solve for x
    x = 75,137,196.32/12,368.78
  6. Step 6: Final answer
    x = 6,074.74

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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.