Home / 13,389.35-20,085.01-3,528.56

Finding the Fourth Proportional to 13,389.35, 20,085.01 and 3,528.56

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Solution

The fourth proportional to 13,389.35, 20,085.01 and 3,528.56 is: 5,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.35 : 20,085.01 = 3,528.56 : x
  2. Step 2: Convert to fraction form
    13,389.35/20,085.01 = 3,528.56/x
  3. Step 3: Cross multiply
    13,389.35x = 20,085.01 × 3,528.56
  4. Step 4: Simplify right side
    13,389.35x = 70,871,224.12
  5. Step 5: Solve for x
    x = 70,871,224.12/13,389.35
  6. Step 6: Final answer
    x = 5,293.10

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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.