Home / 14,128.04-19,495.22-8,161.58

Finding the Fourth Proportional to 14,128.04, 19,495.22 and 8,161.58

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Solution

The fourth proportional to 14,128.04, 19,495.22 and 8,161.58 is: 11,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.04 : 19,495.22 = 8,161.58 : x
  2. Step 2: Convert to fraction form
    14,128.04/19,495.22 = 8,161.58/x
  3. Step 3: Cross multiply
    14,128.04x = 19,495.22 × 8,161.58
  4. Step 4: Simplify right side
    14,128.04x = 159,111,805.58
  5. Step 5: Solve for x
    x = 159,111,805.58/14,128.04
  6. Step 6: Final answer
    x = 11,262.13

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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.