Home / 13,319.06-18,376.62-7,653.51

Finding the Fourth Proportional to 13,319.06, 18,376.62 and 7,653.51

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Solution

The fourth proportional to 13,319.06, 18,376.62 and 7,653.51 is: 10,559.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.06 : 18,376.62 = 7,653.51 : x
  2. Step 2: Convert to fraction form
    13,319.06/18,376.62 = 7,653.51/x
  3. Step 3: Cross multiply
    13,319.06x = 18,376.62 × 7,653.51
  4. Step 4: Simplify right side
    13,319.06x = 140,645,644.94
  5. Step 5: Solve for x
    x = 140,645,644.94/13,319.06
  6. Step 6: Final answer
    x = 10,559.73

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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.