Home / 15,400.15-21,252.19-8,326.51

Finding the Fourth Proportional to 15,400.15, 21,252.19 and 8,326.51

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Solution

The fourth proportional to 15,400.15, 21,252.19 and 8,326.51 is: 11,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.15 : 21,252.19 = 8,326.51 : x
  2. Step 2: Convert to fraction form
    15,400.15/21,252.19 = 8,326.51/x
  3. Step 3: Cross multiply
    15,400.15x = 21,252.19 × 8,326.51
  4. Step 4: Simplify right side
    15,400.15x = 176,956,572.56
  5. Step 5: Solve for x
    x = 176,956,572.56/15,400.15
  6. Step 6: Final answer
    x = 11,490.57

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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.