Home / 13,979.52-19,275.84-10,431.36

Finding the Fourth Proportional to 13,979.52, 19,275.84 and 10,431.36

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Solution

The fourth proportional to 13,979.52, 19,275.84 and 10,431.36 is: 14,383.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.52 : 19,275.84 = 10,431.36 : x
  2. Step 2: Convert to fraction form
    13,979.52/19,275.84 = 10,431.36/x
  3. Step 3: Cross multiply
    13,979.52x = 19,275.84 × 10,431.36
  4. Step 4: Simplify right side
    13,979.52x = 201,073,226.34
  5. Step 5: Solve for x
    x = 201,073,226.34/13,979.52
  6. Step 6: Final answer
    x = 14,383.41

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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.