Home / 13,979.34-19,292.02-8,012.16

Finding the Fourth Proportional to 13,979.34, 19,292.02 and 8,012.16

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Solution

The fourth proportional to 13,979.34, 19,292.02 and 8,012.16 is: 11,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.34 : 19,292.02 = 8,012.16 : x
  2. Step 2: Convert to fraction form
    13,979.34/19,292.02 = 8,012.16/x
  3. Step 3: Cross multiply
    13,979.34x = 19,292.02 × 8,012.16
  4. Step 4: Simplify right side
    13,979.34x = 154,570,750.96
  5. Step 5: Solve for x
    x = 154,570,750.96/13,979.34
  6. Step 6: Final answer
    x = 11,057.09

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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.