Home / 15,537.08-21,445.86-11,073.78

Finding the Fourth Proportional to 15,537.08, 21,445.86 and 11,073.78

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Solution

The fourth proportional to 15,537.08, 21,445.86 and 11,073.78 is: 15,285.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,537.08 : 21,445.86 = 11,073.78 : x
  2. Step 2: Convert to fraction form
    15,537.08/21,445.86 = 11,073.78/x
  3. Step 3: Cross multiply
    15,537.08x = 21,445.86 × 11,073.78
  4. Step 4: Simplify right side
    15,537.08x = 237,486,735.55
  5. Step 5: Solve for x
    x = 237,486,735.55/15,537.08
  6. Step 6: Final answer
    x = 15,285.16

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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.