Home / 15,576.72-21,495.52-8,503.26

Finding the Fourth Proportional to 15,576.72, 21,495.52 and 8,503.26

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Solution

The fourth proportional to 15,576.72, 21,495.52 and 8,503.26 is: 11,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.72 : 21,495.52 = 8,503.26 : x
  2. Step 2: Convert to fraction form
    15,576.72/21,495.52 = 8,503.26/x
  3. Step 3: Cross multiply
    15,576.72x = 21,495.52 × 8,503.26
  4. Step 4: Simplify right side
    15,576.72x = 182,781,995.40
  5. Step 5: Solve for x
    x = 182,781,995.40/15,576.72
  6. Step 6: Final answer
    x = 11,734.31

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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.