Home / 18,713.49-28,070.37-12,852.33

Finding the Fourth Proportional to 18,713.49, 28,070.37 and 12,852.33

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Solution

The fourth proportional to 18,713.49, 28,070.37 and 12,852.33 is: 19,278.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.49 : 28,070.37 = 12,852.33 : x
  2. Step 2: Convert to fraction form
    18,713.49/28,070.37 = 12,852.33/x
  3. Step 3: Cross multiply
    18,713.49x = 28,070.37 × 12,852.33
  4. Step 4: Simplify right side
    18,713.49x = 360,769,658.46
  5. Step 5: Solve for x
    x = 360,769,658.46/18,713.49
  6. Step 6: Final answer
    x = 19,278.59

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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.