Home / 15,544.37-21,451.14-8,470.77

Finding the Fourth Proportional to 15,544.37, 21,451.14 and 8,470.77

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Solution

The fourth proportional to 15,544.37, 21,451.14 and 8,470.77 is: 11,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.37 : 21,451.14 = 8,470.77 : x
  2. Step 2: Convert to fraction form
    15,544.37/21,451.14 = 8,470.77/x
  3. Step 3: Cross multiply
    15,544.37x = 21,451.14 × 8,470.77
  4. Step 4: Simplify right side
    15,544.37x = 181,707,673.18
  5. Step 5: Solve for x
    x = 181,707,673.18/15,544.37
  6. Step 6: Final answer
    x = 11,689.61

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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.