Home / 26,453.69-39,678.86-12,416.79

Finding the Fourth Proportional to 26,453.69, 39,678.86 and 12,416.79

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Solution

The fourth proportional to 26,453.69, 39,678.86 and 12,416.79 is: 18,624.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,453.69 : 39,678.86 = 12,416.79 : x
  2. Step 2: Convert to fraction form
    26,453.69/39,678.86 = 12,416.79/x
  3. Step 3: Cross multiply
    26,453.69x = 39,678.86 × 12,416.79
  4. Step 4: Simplify right side
    26,453.69x = 492,684,251.90
  5. Step 5: Solve for x
    x = 492,684,251.90/26,453.69
  6. Step 6: Final answer
    x = 18,624.41

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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.