Home / 12,845.70-19,268.28-5,920.20

Finding the Fourth Proportional to 12,845.70, 19,268.28 and 5,920.20

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Solution

The fourth proportional to 12,845.70, 19,268.28 and 5,920.20 is: 8,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.70 : 19,268.28 = 5,920.20 : x
  2. Step 2: Convert to fraction form
    12,845.70/19,268.28 = 5,920.20/x
  3. Step 3: Cross multiply
    12,845.70x = 19,268.28 × 5,920.20
  4. Step 4: Simplify right side
    12,845.70x = 114,072,071.26
  5. Step 5: Solve for x
    x = 114,072,071.26/12,845.70
  6. Step 6: Final answer
    x = 8,880.18

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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.