Home / 12,864.45-19,276.75-8,923.37

Finding the Fourth Proportional to 12,864.45, 19,276.75 and 8,923.37

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Solution

The fourth proportional to 12,864.45, 19,276.75 and 8,923.37 is: 13,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.45 : 19,276.75 = 8,923.37 : x
  2. Step 2: Convert to fraction form
    12,864.45/19,276.75 = 8,923.37/x
  3. Step 3: Cross multiply
    12,864.45x = 19,276.75 × 8,923.37
  4. Step 4: Simplify right side
    12,864.45x = 172,013,597.19
  5. Step 5: Solve for x
    x = 172,013,597.19/12,864.45
  6. Step 6: Final answer
    x = 13,371.23

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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.