Home / 13,325.01-18,388.28-7,356.56

Finding the Fourth Proportional to 13,325.01, 18,388.28 and 7,356.56

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Solution

The fourth proportional to 13,325.01, 18,388.28 and 7,356.56 is: 10,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.01 : 18,388.28 = 7,356.56 : x
  2. Step 2: Convert to fraction form
    13,325.01/18,388.28 = 7,356.56/x
  3. Step 3: Cross multiply
    13,325.01x = 18,388.28 × 7,356.56
  4. Step 4: Simplify right side
    13,325.01x = 135,274,411.57
  5. Step 5: Solve for x
    x = 135,274,411.57/13,325.01
  6. Step 6: Final answer
    x = 10,151.92

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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.