Home / 13,746.88-18,979.68-10,014.40

Finding the Fourth Proportional to 13,746.88, 18,979.68 and 10,014.40

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Solution

The fourth proportional to 13,746.88, 18,979.68 and 10,014.40 is: 13,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.88 : 18,979.68 = 10,014.40 : x
  2. Step 2: Convert to fraction form
    13,746.88/18,979.68 = 10,014.40/x
  3. Step 3: Cross multiply
    13,746.88x = 18,979.68 × 10,014.40
  4. Step 4: Simplify right side
    13,746.88x = 190,070,107.39
  5. Step 5: Solve for x
    x = 190,070,107.39/13,746.88
  6. Step 6: Final answer
    x = 13,826.42

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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.