Home / 15,987.82-23,985.37-4,895.38

Finding the Fourth Proportional to 15,987.82, 23,985.37 and 4,895.38

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Solution

The fourth proportional to 15,987.82, 23,985.37 and 4,895.38 is: 7,344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.82 : 23,985.37 = 4,895.38 : x
  2. Step 2: Convert to fraction form
    15,987.82/23,985.37 = 4,895.38/x
  3. Step 3: Cross multiply
    15,987.82x = 23,985.37 × 4,895.38
  4. Step 4: Simplify right side
    15,987.82x = 117,417,500.59
  5. Step 5: Solve for x
    x = 117,417,500.59/15,987.82
  6. Step 6: Final answer
    x = 7,344.18

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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.