Home / 15,075.18-20,796.75-9,406.26

Finding the Fourth Proportional to 15,075.18, 20,796.75 and 9,406.26

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Solution

The fourth proportional to 15,075.18, 20,796.75 and 9,406.26 is: 12,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.18 : 20,796.75 = 9,406.26 : x
  2. Step 2: Convert to fraction form
    15,075.18/20,796.75 = 9,406.26/x
  3. Step 3: Cross multiply
    15,075.18x = 20,796.75 × 9,406.26
  4. Step 4: Simplify right side
    15,075.18x = 195,619,637.66
  5. Step 5: Solve for x
    x = 195,619,637.66/15,075.18
  6. Step 6: Final answer
    x = 12,976.27

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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.