Home / 12,290.19-18,435.28-3,056.19

Finding the Fourth Proportional to 12,290.19, 18,435.28 and 3,056.19

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Solution

The fourth proportional to 12,290.19, 18,435.28 and 3,056.19 is: 4,584.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.19 : 18,435.28 = 3,056.19 : x
  2. Step 2: Convert to fraction form
    12,290.19/18,435.28 = 3,056.19/x
  3. Step 3: Cross multiply
    12,290.19x = 18,435.28 × 3,056.19
  4. Step 4: Simplify right side
    12,290.19x = 56,341,718.38
  5. Step 5: Solve for x
    x = 56,341,718.38/12,290.19
  6. Step 6: Final answer
    x = 4,584.28

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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.