Home / 13,825.02-19,078.56-7,537.80

Finding the Fourth Proportional to 13,825.02, 19,078.56 and 7,537.80

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Solution

The fourth proportional to 13,825.02, 19,078.56 and 7,537.80 is: 10,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.02 : 19,078.56 = 7,537.80 : x
  2. Step 2: Convert to fraction form
    13,825.02/19,078.56 = 7,537.80/x
  3. Step 3: Cross multiply
    13,825.02x = 19,078.56 × 7,537.80
  4. Step 4: Simplify right side
    13,825.02x = 143,810,369.57
  5. Step 5: Solve for x
    x = 143,810,369.57/13,825.02
  6. Step 6: Final answer
    x = 10,402.18

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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.