Home / 12,045.86-18,068.93-4,249.20

Finding the Fourth Proportional to 12,045.86, 18,068.93 and 4,249.20

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Solution

The fourth proportional to 12,045.86, 18,068.93 and 4,249.20 is: 6,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.86 : 18,068.93 = 4,249.20 : x
  2. Step 2: Convert to fraction form
    12,045.86/18,068.93 = 4,249.20/x
  3. Step 3: Cross multiply
    12,045.86x = 18,068.93 × 4,249.20
  4. Step 4: Simplify right side
    12,045.86x = 76,778,476.11
  5. Step 5: Solve for x
    x = 76,778,476.11/12,045.86
  6. Step 6: Final answer
    x = 6,373.85

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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.