Home / 13,075.88-18,043.97-7,107.50

Finding the Fourth Proportional to 13,075.88, 18,043.97 and 7,107.50

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Solution

The fourth proportional to 13,075.88, 18,043.97 and 7,107.50 is: 9,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.88 : 18,043.97 = 7,107.50 : x
  2. Step 2: Convert to fraction form
    13,075.88/18,043.97 = 7,107.50/x
  3. Step 3: Cross multiply
    13,075.88x = 18,043.97 × 7,107.50
  4. Step 4: Simplify right side
    13,075.88x = 128,247,481.24
  5. Step 5: Solve for x
    x = 128,247,481.24/13,075.88
  6. Step 6: Final answer
    x = 9,807.94

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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.