Home / 14,389.73-19,858.61-8,102.69

Finding the Fourth Proportional to 14,389.73, 19,858.61 and 8,102.69

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Solution

The fourth proportional to 14,389.73, 19,858.61 and 8,102.69 is: 11,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.73 : 19,858.61 = 8,102.69 : x
  2. Step 2: Convert to fraction form
    14,389.73/19,858.61 = 8,102.69/x
  3. Step 3: Cross multiply
    14,389.73x = 19,858.61 × 8,102.69
  4. Step 4: Simplify right side
    14,389.73x = 160,908,120.15
  5. Step 5: Solve for x
    x = 160,908,120.15/14,389.73
  6. Step 6: Final answer
    x = 11,182.15

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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.