Home / 12,474.90-17,216.01-7,170.21

Finding the Fourth Proportional to 12,474.90, 17,216.01 and 7,170.21

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Solution

The fourth proportional to 12,474.90, 17,216.01 and 7,170.21 is: 9,895.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.90 : 17,216.01 = 7,170.21 : x
  2. Step 2: Convert to fraction form
    12,474.90/17,216.01 = 7,170.21/x
  3. Step 3: Cross multiply
    12,474.90x = 17,216.01 × 7,170.21
  4. Step 4: Simplify right side
    12,474.90x = 123,442,407.06
  5. Step 5: Solve for x
    x = 123,442,407.06/12,474.90
  6. Step 6: Final answer
    x = 9,895.26

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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.