Home / 13,999.83-19,319.31-7,626.12

Finding the Fourth Proportional to 13,999.83, 19,319.31 and 7,626.12

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Solution

The fourth proportional to 13,999.83, 19,319.31 and 7,626.12 is: 10,523.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.83 : 19,319.31 = 7,626.12 : x
  2. Step 2: Convert to fraction form
    13,999.83/19,319.31 = 7,626.12/x
  3. Step 3: Cross multiply
    13,999.83x = 19,319.31 × 7,626.12
  4. Step 4: Simplify right side
    13,999.83x = 147,331,376.38
  5. Step 5: Solve for x
    x = 147,331,376.38/13,999.83
  6. Step 6: Final answer
    x = 10,523.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.