Home / 19,206.05-28,786.46-8,663.81

Finding the Fourth Proportional to 19,206.05, 28,786.46 and 8,663.81

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Solution

The fourth proportional to 19,206.05, 28,786.46 and 8,663.81 is: 12,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,206.05 : 28,786.46 = 8,663.81 : x
  2. Step 2: Convert to fraction form
    19,206.05/28,786.46 = 8,663.81/x
  3. Step 3: Cross multiply
    19,206.05x = 28,786.46 × 8,663.81
  4. Step 4: Simplify right side
    19,206.05x = 249,400,232.76
  5. Step 5: Solve for x
    x = 249,400,232.76/19,206.05
  6. Step 6: Final answer
    x = 12,985.51

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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.