Home / 13,313.87-19,968.08-6,290.90

Finding the Fourth Proportional to 13,313.87, 19,968.08 and 6,290.90

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Solution

The fourth proportional to 13,313.87, 19,968.08 and 6,290.90 is: 9,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.87 : 19,968.08 = 6,290.90 : x
  2. Step 2: Convert to fraction form
    13,313.87/19,968.08 = 6,290.90/x
  3. Step 3: Cross multiply
    13,313.87x = 19,968.08 × 6,290.90
  4. Step 4: Simplify right side
    13,313.87x = 125,617,212.94
  5. Step 5: Solve for x
    x = 125,617,212.94/13,313.87
  6. Step 6: Final answer
    x = 9,435.06

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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.