Home / 12,372.30-17,075.79-9,206.64

Finding the Fourth Proportional to 12,372.30, 17,075.79 and 9,206.64

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Solution

The fourth proportional to 12,372.30, 17,075.79 and 9,206.64 is: 12,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.30 : 17,075.79 = 9,206.64 : x
  2. Step 2: Convert to fraction form
    12,372.30/17,075.79 = 9,206.64/x
  3. Step 3: Cross multiply
    12,372.30x = 17,075.79 × 9,206.64
  4. Step 4: Simplify right side
    12,372.30x = 157,210,651.25
  5. Step 5: Solve for x
    x = 157,210,651.25/12,372.30
  6. Step 6: Final answer
    x = 12,706.66

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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.