Home / 15,445.44-21,336.48-12,297.60

Finding the Fourth Proportional to 15,445.44, 21,336.48 and 12,297.60

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Solution

The fourth proportional to 15,445.44, 21,336.48 and 12,297.60 is: 16,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.44 : 21,336.48 = 12,297.60 : x
  2. Step 2: Convert to fraction form
    15,445.44/21,336.48 = 12,297.60/x
  3. Step 3: Cross multiply
    15,445.44x = 21,336.48 × 12,297.60
  4. Step 4: Simplify right side
    15,445.44x = 262,387,496.45
  5. Step 5: Solve for x
    x = 262,387,496.45/15,445.44
  6. Step 6: Final answer
    x = 16,988.02

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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.