Home / 13,867.68-19,137.12-7,579.92

Finding the Fourth Proportional to 13,867.68, 19,137.12 and 7,579.92

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Solution

The fourth proportional to 13,867.68, 19,137.12 and 7,579.92 is: 10,460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.68 : 19,137.12 = 7,579.92 : x
  2. Step 2: Convert to fraction form
    13,867.68/19,137.12 = 7,579.92/x
  3. Step 3: Cross multiply
    13,867.68x = 19,137.12 × 7,579.92
  4. Step 4: Simplify right side
    13,867.68x = 145,057,838.63
  5. Step 5: Solve for x
    x = 145,057,838.63/13,867.68
  6. Step 6: Final answer
    x = 10,460.14

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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.