Home / 15,451.66-21,323.09-8,377.93

Finding the Fourth Proportional to 15,451.66, 21,323.09 and 8,377.93

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Solution

The fourth proportional to 15,451.66, 21,323.09 and 8,377.93 is: 11,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.66 : 21,323.09 = 8,377.93 : x
  2. Step 2: Convert to fraction form
    15,451.66/21,323.09 = 8,377.93/x
  3. Step 3: Cross multiply
    15,451.66x = 21,323.09 × 8,377.93
  4. Step 4: Simplify right side
    15,451.66x = 178,643,313.51
  5. Step 5: Solve for x
    x = 178,643,313.51/15,451.66
  6. Step 6: Final answer
    x = 11,561.43

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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.