Home / 14,187.76-21,165.60-13,180.93

Finding the Fourth Proportional to 14,187.76, 21,165.60 and 13,180.93

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Solution

The fourth proportional to 14,187.76, 21,165.60 and 13,180.93 is: 19,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.76 : 21,165.60 = 13,180.93 : x
  2. Step 2: Convert to fraction form
    14,187.76/21,165.60 = 13,180.93/x
  3. Step 3: Cross multiply
    14,187.76x = 21,165.60 × 13,180.93
  4. Step 4: Simplify right side
    14,187.76x = 278,982,288.52
  5. Step 5: Solve for x
    x = 278,982,288.52/14,187.76
  6. Step 6: Final answer
    x = 19,663.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.