Home / 13,678.32-18,880.19-8,014.29

Finding the Fourth Proportional to 13,678.32, 18,880.19 and 8,014.29

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Solution

The fourth proportional to 13,678.32, 18,880.19 and 8,014.29 is: 11,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.32 : 18,880.19 = 8,014.29 : x
  2. Step 2: Convert to fraction form
    13,678.32/18,880.19 = 8,014.29/x
  3. Step 3: Cross multiply
    13,678.32x = 18,880.19 × 8,014.29
  4. Step 4: Simplify right side
    13,678.32x = 151,311,343.30
  5. Step 5: Solve for x
    x = 151,311,343.30/13,678.32
  6. Step 6: Final answer
    x = 11,062.13

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1.5x scale

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.