Home / 14,078.49-21,102.54-9,151.66

Finding the Fourth Proportional to 14,078.49, 21,102.54 and 9,151.66

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Solution

The fourth proportional to 14,078.49, 21,102.54 and 9,151.66 is: 13,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.49 : 21,102.54 = 9,151.66 : x
  2. Step 2: Convert to fraction form
    14,078.49/21,102.54 = 9,151.66/x
  3. Step 3: Cross multiply
    14,078.49x = 21,102.54 × 9,151.66
  4. Step 4: Simplify right side
    14,078.49x = 193,123,271.22
  5. Step 5: Solve for x
    x = 193,123,271.22/14,078.49
  6. Step 6: Final answer
    x = 13,717.61

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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.