Home / 12,678.75-19,026.77-4,470.75

Finding the Fourth Proportional to 12,678.75, 19,026.77 and 4,470.75

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Solution

The fourth proportional to 12,678.75, 19,026.77 and 4,470.75 is: 6,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678.75 : 19,026.77 = 4,470.75 : x
  2. Step 2: Convert to fraction form
    12,678.75/19,026.77 = 4,470.75/x
  3. Step 3: Cross multiply
    12,678.75x = 19,026.77 × 4,470.75
  4. Step 4: Simplify right side
    12,678.75x = 85,063,909.62
  5. Step 5: Solve for x
    x = 85,063,909.62/12,678.75
  6. Step 6: Final answer
    x = 6,709.17

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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.