Home / 13,719.08-18,931.35-8,054.06

Finding the Fourth Proportional to 13,719.08, 18,931.35 and 8,054.06

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Solution

The fourth proportional to 13,719.08, 18,931.35 and 8,054.06 is: 11,114.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.08 : 18,931.35 = 8,054.06 : x
  2. Step 2: Convert to fraction form
    13,719.08/18,931.35 = 8,054.06/x
  3. Step 3: Cross multiply
    13,719.08x = 18,931.35 × 8,054.06
  4. Step 4: Simplify right side
    13,719.08x = 152,474,228.78
  5. Step 5: Solve for x
    x = 152,474,228.78/13,719.08
  6. Step 6: Final answer
    x = 11,114.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.