Home / 15,232.71-21,021.96-8,518.32

Finding the Fourth Proportional to 15,232.71, 21,021.96 and 8,518.32

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Solution

The fourth proportional to 15,232.71, 21,021.96 and 8,518.32 is: 11,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,232.71 : 21,021.96 = 8,518.32 : x
  2. Step 2: Convert to fraction form
    15,232.71/21,021.96 = 8,518.32/x
  3. Step 3: Cross multiply
    15,232.71x = 21,021.96 × 8,518.32
  4. Step 4: Simplify right side
    15,232.71x = 179,071,782.31
  5. Step 5: Solve for x
    x = 179,071,782.31/15,232.71
  6. Step 6: Final answer
    x = 11,755.74

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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.