Home / 12,860.32-19,300.74-5,074.60

Finding the Fourth Proportional to 12,860.32, 19,300.74 and 5,074.60

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Solution

The fourth proportional to 12,860.32, 19,300.74 and 5,074.60 is: 7,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.32 : 19,300.74 = 5,074.60 : x
  2. Step 2: Convert to fraction form
    12,860.32/19,300.74 = 5,074.60/x
  3. Step 3: Cross multiply
    12,860.32x = 19,300.74 × 5,074.60
  4. Step 4: Simplify right side
    12,860.32x = 97,943,535.20
  5. Step 5: Solve for x
    x = 97,943,535.20/12,860.32
  6. Step 6: Final answer
    x = 7,615.95

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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.