Home / 13,146.58-19,719.51-4,381.66

Finding the Fourth Proportional to 13,146.58, 19,719.51 and 4,381.66

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Solution

The fourth proportional to 13,146.58, 19,719.51 and 4,381.66 is: 6,572.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.58 : 19,719.51 = 4,381.66 : x
  2. Step 2: Convert to fraction form
    13,146.58/19,719.51 = 4,381.66/x
  3. Step 3: Cross multiply
    13,146.58x = 19,719.51 × 4,381.66
  4. Step 4: Simplify right side
    13,146.58x = 86,404,188.19
  5. Step 5: Solve for x
    x = 86,404,188.19/13,146.58
  6. Step 6: Final answer
    x = 6,572.37

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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.