Home / 14,078.24-19,421.88-8,486

Finding the Fourth Proportional to 14,078.24, 19,421.88 and 8,486

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Solution

The fourth proportional to 14,078.24, 19,421.88 and 8,486 is: 11,707.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.24 : 19,421.88 = 8,486 : x
  2. Step 2: Convert to fraction form
    14,078.24/19,421.88 = 8,486/x
  3. Step 3: Cross multiply
    14,078.24x = 19,421.88 × 8,486
  4. Step 4: Simplify right side
    14,078.24x = 164,814,073.68
  5. Step 5: Solve for x
    x = 164,814,073.68/14,078.24
  6. Step 6: Final answer
    x = 11,707.01

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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.