Home / 13,979.28-19,291.93-8,012.10

Finding the Fourth Proportional to 13,979.28, 19,291.93 and 8,012.10

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Solution

The fourth proportional to 13,979.28, 19,291.93 and 8,012.10 is: 11,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.28 : 19,291.93 = 8,012.10 : x
  2. Step 2: Convert to fraction form
    13,979.28/19,291.93 = 8,012.10/x
  3. Step 3: Cross multiply
    13,979.28x = 19,291.93 × 8,012.10
  4. Step 4: Simplify right side
    13,979.28x = 154,568,861.22
  5. Step 5: Solve for x
    x = 154,568,861.22/13,979.28
  6. Step 6: Final answer
    x = 11,057.00

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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.