Home / 15,120.81-22,648.39-7,313.25

Finding the Fourth Proportional to 15,120.81, 22,648.39 and 7,313.25

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Solution

The fourth proportional to 15,120.81, 22,648.39 and 7,313.25 is: 10,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120.81 : 22,648.39 = 7,313.25 : x
  2. Step 2: Convert to fraction form
    15,120.81/22,648.39 = 7,313.25/x
  3. Step 3: Cross multiply
    15,120.81x = 22,648.39 × 7,313.25
  4. Step 4: Simplify right side
    15,120.81x = 165,633,338.17
  5. Step 5: Solve for x
    x = 165,633,338.17/15,120.81
  6. Step 6: Final answer
    x = 10,954.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.