Home / 14,321.29-21,481.61-8,435.51

Finding the Fourth Proportional to 14,321.29, 21,481.61 and 8,435.51

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Solution

The fourth proportional to 14,321.29, 21,481.61 and 8,435.51 is: 12,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.29 : 21,481.61 = 8,435.51 : x
  2. Step 2: Convert to fraction form
    14,321.29/21,481.61 = 8,435.51/x
  3. Step 3: Cross multiply
    14,321.29x = 21,481.61 × 8,435.51
  4. Step 4: Simplify right side
    14,321.29x = 181,208,424.71
  5. Step 5: Solve for x
    x = 181,208,424.71/14,321.29
  6. Step 6: Final answer
    x = 12,653.08

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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.