Home / 13,146.08-19,718.76-4,381.16

Finding the Fourth Proportional to 13,146.08, 19,718.76 and 4,381.16

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Solution

The fourth proportional to 13,146.08, 19,718.76 and 4,381.16 is: 6,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.08 : 19,718.76 = 4,381.16 : x
  2. Step 2: Convert to fraction form
    13,146.08/19,718.76 = 4,381.16/x
  3. Step 3: Cross multiply
    13,146.08x = 19,718.76 × 4,381.16
  4. Step 4: Simplify right side
    13,146.08x = 86,391,042.56
  5. Step 5: Solve for x
    x = 86,391,042.56/13,146.08
  6. Step 6: Final answer
    x = 6,571.62

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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.