Home / 15,916.44-21,964.56-9,202.08

Finding the Fourth Proportional to 15,916.44, 21,964.56 and 9,202.08

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Solution

The fourth proportional to 15,916.44, 21,964.56 and 9,202.08 is: 12,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.44 : 21,964.56 = 9,202.08 : x
  2. Step 2: Convert to fraction form
    15,916.44/21,964.56 = 9,202.08/x
  3. Step 3: Cross multiply
    15,916.44x = 21,964.56 × 9,202.08
  4. Step 4: Simplify right side
    15,916.44x = 202,119,638.28
  5. Step 5: Solve for x
    x = 202,119,638.28/15,916.44
  6. Step 6: Final answer
    x = 12,698.80

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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.