Home / 13,075.08-18,043.79-7,106.75

Finding the Fourth Proportional to 13,075.08, 18,043.79 and 7,106.75

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Solution

The fourth proportional to 13,075.08, 18,043.79 and 7,106.75 is: 9,807.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.08 : 18,043.79 = 7,106.75 : x
  2. Step 2: Convert to fraction form
    13,075.08/18,043.79 = 7,106.75/x
  3. Step 3: Cross multiply
    13,075.08x = 18,043.79 × 7,106.75
  4. Step 4: Simplify right side
    13,075.08x = 128,232,713.12
  5. Step 5: Solve for x
    x = 128,232,713.12/13,075.08
  6. Step 6: Final answer
    x = 9,807.41

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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.