Home / 13,822.38-19,075.26-8,520.66

Finding the Fourth Proportional to 13,822.38, 19,075.26 and 8,520.66

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Solution

The fourth proportional to 13,822.38, 19,075.26 and 8,520.66 is: 11,758.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.38 : 19,075.26 = 8,520.66 : x
  2. Step 2: Convert to fraction form
    13,822.38/19,075.26 = 8,520.66/x
  3. Step 3: Cross multiply
    13,822.38x = 19,075.26 × 8,520.66
  4. Step 4: Simplify right side
    13,822.38x = 162,533,804.87
  5. Step 5: Solve for x
    x = 162,533,804.87/13,822.38
  6. Step 6: Final answer
    x = 11,758.74

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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.