Home / 13,075.26-18,043.89-7,106.79

Finding the Fourth Proportional to 13,075.26, 18,043.89 and 7,106.79

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Solution

The fourth proportional to 13,075.26, 18,043.89 and 7,106.79 is: 9,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.26 : 18,043.89 = 7,106.79 : x
  2. Step 2: Convert to fraction form
    13,075.26/18,043.89 = 7,106.79/x
  3. Step 3: Cross multiply
    13,075.26x = 18,043.89 × 7,106.79
  4. Step 4: Simplify right side
    13,075.26x = 128,234,137.01
  5. Step 5: Solve for x
    x = 128,234,137.01/13,075.26
  6. Step 6: Final answer
    x = 9,807.39

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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.