Home / 13,790.15-19,029.87-7,822.98

Finding the Fourth Proportional to 13,790.15, 19,029.87 and 7,822.98

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Solution

The fourth proportional to 13,790.15, 19,029.87 and 7,822.98 is: 10,795.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.15 : 19,029.87 = 7,822.98 : x
  2. Step 2: Convert to fraction form
    13,790.15/19,029.87 = 7,822.98/x
  3. Step 3: Cross multiply
    13,790.15x = 19,029.87 × 7,822.98
  4. Step 4: Simplify right side
    13,790.15x = 148,870,292.41
  5. Step 5: Solve for x
    x = 148,870,292.41/13,790.15
  6. Step 6: Final answer
    x = 10,795.41

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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.