Home / 15,261.63-21,059.26-8,889.61

Finding the Fourth Proportional to 15,261.63, 21,059.26 and 8,889.61

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Solution

The fourth proportional to 15,261.63, 21,059.26 and 8,889.61 is: 12,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.63 : 21,059.26 = 8,889.61 : x
  2. Step 2: Convert to fraction form
    15,261.63/21,059.26 = 8,889.61/x
  3. Step 3: Cross multiply
    15,261.63x = 21,059.26 × 8,889.61
  4. Step 4: Simplify right side
    15,261.63x = 187,208,608.29
  5. Step 5: Solve for x
    x = 187,208,608.29/15,261.63
  6. Step 6: Final answer
    x = 12,266.62

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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.