Home / 14,019.21-19,346.35-7,645.78

Finding the Fourth Proportional to 14,019.21, 19,346.35 and 7,645.78

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Solution

The fourth proportional to 14,019.21, 19,346.35 and 7,645.78 is: 10,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.21 : 19,346.35 = 7,645.78 : x
  2. Step 2: Convert to fraction form
    14,019.21/19,346.35 = 7,645.78/x
  3. Step 3: Cross multiply
    14,019.21x = 19,346.35 × 7,645.78
  4. Step 4: Simplify right side
    14,019.21x = 147,917,935.90
  5. Step 5: Solve for x
    x = 147,917,935.90/14,019.21
  6. Step 6: Final answer
    x = 10,551.09

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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.