Home / 19,290.56-26,616.60-12,212.91

Finding the Fourth Proportional to 19,290.56, 26,616.60 and 12,212.91

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Solution

The fourth proportional to 19,290.56, 26,616.60 and 12,212.91 is: 16,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.56 : 26,616.60 = 12,212.91 : x
  2. Step 2: Convert to fraction form
    19,290.56/26,616.60 = 12,212.91/x
  3. Step 3: Cross multiply
    19,290.56x = 26,616.60 × 12,212.91
  4. Step 4: Simplify right side
    19,290.56x = 325,066,140.31
  5. Step 5: Solve for x
    x = 325,066,140.31/19,290.56
  6. Step 6: Final answer
    x = 16,851.05

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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.