Home / 15,255.56-21,050.24-8,541.47

Finding the Fourth Proportional to 15,255.56, 21,050.24 and 8,541.47

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Solution

The fourth proportional to 15,255.56, 21,050.24 and 8,541.47 is: 11,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.56 : 21,050.24 = 8,541.47 : x
  2. Step 2: Convert to fraction form
    15,255.56/21,050.24 = 8,541.47/x
  3. Step 3: Cross multiply
    15,255.56x = 21,050.24 × 8,541.47
  4. Step 4: Simplify right side
    15,255.56x = 179,799,888.20
  5. Step 5: Solve for x
    x = 179,799,888.20/15,255.56
  6. Step 6: Final answer
    x = 11,785.86

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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.