Home / 12,770.03-19,155.18-3,886.80

Finding the Fourth Proportional to 12,770.03, 19,155.18 and 3,886.80

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Solution

The fourth proportional to 12,770.03, 19,155.18 and 3,886.80 is: 5,830.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.03 : 19,155.18 = 3,886.80 : x
  2. Step 2: Convert to fraction form
    12,770.03/19,155.18 = 3,886.80/x
  3. Step 3: Cross multiply
    12,770.03x = 19,155.18 × 3,886.80
  4. Step 4: Simplify right side
    12,770.03x = 74,452,404.12
  5. Step 5: Solve for x
    x = 74,452,404.12/12,770.03
  6. Step 6: Final answer
    x = 5,830.25

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1.5x scale

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.