Home / 19,145.58-28,713.66-6,663.78

Finding the Fourth Proportional to 19,145.58, 28,713.66 and 6,663.78

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Solution

The fourth proportional to 19,145.58, 28,713.66 and 6,663.78 is: 9,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.58 : 28,713.66 = 6,663.78 : x
  2. Step 2: Convert to fraction form
    19,145.58/28,713.66 = 6,663.78/x
  3. Step 3: Cross multiply
    19,145.58x = 28,713.66 × 6,663.78
  4. Step 4: Simplify right side
    19,145.58x = 191,341,513.23
  5. Step 5: Solve for x
    x = 191,341,513.23/19,145.58
  6. Step 6: Final answer
    x = 9,994.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.