Home / 13,822.63-19,075.90-7,774.77

Finding the Fourth Proportional to 13,822.63, 19,075.90 and 7,774.77

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Solution

The fourth proportional to 13,822.63, 19,075.90 and 7,774.77 is: 10,729.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.63 : 19,075.90 = 7,774.77 : x
  2. Step 2: Convert to fraction form
    13,822.63/19,075.90 = 7,774.77/x
  3. Step 3: Cross multiply
    13,822.63x = 19,075.90 × 7,774.77
  4. Step 4: Simplify right side
    13,822.63x = 148,310,735.04
  5. Step 5: Solve for x
    x = 148,310,735.04/13,822.63
  6. Step 6: Final answer
    x = 10,729.56

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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.