Home / 15,257.32-21,054.90-8,543.56

Finding the Fourth Proportional to 15,257.32, 21,054.90 and 8,543.56

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Solution

The fourth proportional to 15,257.32, 21,054.90 and 8,543.56 is: 11,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.32 : 21,054.90 = 8,543.56 : x
  2. Step 2: Convert to fraction form
    15,257.32/21,054.90 = 8,543.56/x
  3. Step 3: Cross multiply
    15,257.32x = 21,054.90 × 8,543.56
  4. Step 4: Simplify right side
    15,257.32x = 179,883,801.44
  5. Step 5: Solve for x
    x = 179,883,801.44/15,257.32
  6. Step 6: Final answer
    x = 11,790.00

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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.