Home / 12,751.41-19,119.28-4,427.85

Finding the Fourth Proportional to 12,751.41, 19,119.28 and 4,427.85

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Solution

The fourth proportional to 12,751.41, 19,119.28 and 4,427.85 is: 6,639.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751.41 : 19,119.28 = 4,427.85 : x
  2. Step 2: Convert to fraction form
    12,751.41/19,119.28 = 4,427.85/x
  3. Step 3: Cross multiply
    12,751.41x = 19,119.28 × 4,427.85
  4. Step 4: Simplify right side
    12,751.41x = 84,657,303.95
  5. Step 5: Solve for x
    x = 84,657,303.95/12,751.41
  6. Step 6: Final answer
    x = 6,639.05

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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.