Home / 13,145.56-19,718.36-4,381.16

Finding the Fourth Proportional to 13,145.56, 19,718.36 and 4,381.16

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Solution

The fourth proportional to 13,145.56, 19,718.36 and 4,381.16 is: 6,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.56 : 19,718.36 = 4,381.16 : x
  2. Step 2: Convert to fraction form
    13,145.56/19,718.36 = 4,381.16/x
  3. Step 3: Cross multiply
    13,145.56x = 19,718.36 × 4,381.16
  4. Step 4: Simplify right side
    13,145.56x = 86,389,290.10
  5. Step 5: Solve for x
    x = 86,389,290.10/13,145.56
  6. Step 6: Final answer
    x = 6,571.75

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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.