Home / 12,821.02-17,696.24-7,235.26

Finding the Fourth Proportional to 12,821.02, 17,696.24 and 7,235.26

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Solution

The fourth proportional to 12,821.02, 17,696.24 and 7,235.26 is: 9,986.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.02 : 17,696.24 = 7,235.26 : x
  2. Step 2: Convert to fraction form
    12,821.02/17,696.24 = 7,235.26/x
  3. Step 3: Cross multiply
    12,821.02x = 17,696.24 × 7,235.26
  4. Step 4: Simplify right side
    12,821.02x = 128,036,897.42
  5. Step 5: Solve for x
    x = 128,036,897.42/12,821.02
  6. Step 6: Final answer
    x = 9,986.48

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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.