Home / 11,075.16-15,282.36-9,403.32

Finding the Fourth Proportional to 11,075.16, 15,282.36 and 9,403.32

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Solution

The fourth proportional to 11,075.16, 15,282.36 and 9,403.32 is: 12,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,075.16 : 15,282.36 = 9,403.32 : x
  2. Step 2: Convert to fraction form
    11,075.16/15,282.36 = 9,403.32/x
  3. Step 3: Cross multiply
    11,075.16x = 15,282.36 × 9,403.32
  4. Step 4: Simplify right side
    11,075.16x = 143,704,921.44
  5. Step 5: Solve for x
    x = 143,704,921.44/11,075.16
  6. Step 6: Final answer
    x = 12,975.43

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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.