Home / 14,117.45-21,179.68-4,256.91

Finding the Fourth Proportional to 14,117.45, 21,179.68 and 4,256.91

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Solution

The fourth proportional to 14,117.45, 21,179.68 and 4,256.91 is: 6,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.45 : 21,179.68 = 4,256.91 : x
  2. Step 2: Convert to fraction form
    14,117.45/21,179.68 = 4,256.91/x
  3. Step 3: Cross multiply
    14,117.45x = 21,179.68 × 4,256.91
  4. Step 4: Simplify right side
    14,117.45x = 90,159,980.95
  5. Step 5: Solve for x
    x = 90,159,980.95/14,117.45
  6. Step 6: Final answer
    x = 6,386.42

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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.