Home / 12,860.74-19,301.97-5,075.02

Finding the Fourth Proportional to 12,860.74, 19,301.97 and 5,075.02

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Solution

The fourth proportional to 12,860.74, 19,301.97 and 5,075.02 is: 7,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.74 : 19,301.97 = 5,075.02 : x
  2. Step 2: Convert to fraction form
    12,860.74/19,301.97 = 5,075.02/x
  3. Step 3: Cross multiply
    12,860.74x = 19,301.97 × 5,075.02
  4. Step 4: Simplify right side
    12,860.74x = 97,957,883.79
  5. Step 5: Solve for x
    x = 97,957,883.79/12,860.74
  6. Step 6: Final answer
    x = 7,616.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.