Home / 15,576.48-21,495.76-8,503.12

Finding the Fourth Proportional to 15,576.48, 21,495.76 and 8,503.12

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Solution

The fourth proportional to 15,576.48, 21,495.76 and 8,503.12 is: 11,734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.48 : 21,495.76 = 8,503.12 : x
  2. Step 2: Convert to fraction form
    15,576.48/21,495.76 = 8,503.12/x
  3. Step 3: Cross multiply
    15,576.48x = 21,495.76 × 8,503.12
  4. Step 4: Simplify right side
    15,576.48x = 182,781,026.77
  5. Step 5: Solve for x
    x = 182,781,026.77/15,576.48
  6. Step 6: Final answer
    x = 11,734.42

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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.