Home / 13,146.41-19,722.76-4,381.40

Finding the Fourth Proportional to 13,146.41, 19,722.76 and 4,381.40

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Solution

The fourth proportional to 13,146.41, 19,722.76 and 4,381.40 is: 6,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.41 : 19,722.76 = 4,381.40 : x
  2. Step 2: Convert to fraction form
    13,146.41/19,722.76 = 4,381.40/x
  3. Step 3: Cross multiply
    13,146.41x = 19,722.76 × 4,381.40
  4. Step 4: Simplify right side
    13,146.41x = 86,413,339.02
  5. Step 5: Solve for x
    x = 86,413,339.02/13,146.41
  6. Step 6: Final answer
    x = 6,573.15

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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.