Home / 14,078.68-19,430.76-8,028.94

Finding the Fourth Proportional to 14,078.68, 19,430.76 and 8,028.94

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Solution

The fourth proportional to 14,078.68, 19,430.76 and 8,028.94 is: 11,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.68 : 19,430.76 = 8,028.94 : x
  2. Step 2: Convert to fraction form
    14,078.68/19,430.76 = 8,028.94/x
  3. Step 3: Cross multiply
    14,078.68x = 19,430.76 × 8,028.94
  4. Step 4: Simplify right side
    14,078.68x = 156,008,319.08
  5. Step 5: Solve for x
    x = 156,008,319.08/14,078.68
  6. Step 6: Final answer
    x = 11,081.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.