Home / 14,129.06-19,498.14-8,160.71

Finding the Fourth Proportional to 14,129.06, 19,498.14 and 8,160.71

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Solution

The fourth proportional to 14,129.06, 19,498.14 and 8,160.71 is: 11,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.06 : 19,498.14 = 8,160.71 : x
  2. Step 2: Convert to fraction form
    14,129.06/19,498.14 = 8,160.71/x
  3. Step 3: Cross multiply
    14,129.06x = 19,498.14 × 8,160.71
  4. Step 4: Simplify right side
    14,129.06x = 159,118,568.59
  5. Step 5: Solve for x
    x = 159,118,568.59/14,129.06
  6. Step 6: Final answer
    x = 11,261.80

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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.