Home / 13,817.32-19,054.36-8,772.79

Finding the Fourth Proportional to 13,817.32, 19,054.36 and 8,772.79

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Solution

The fourth proportional to 13,817.32, 19,054.36 and 8,772.79 is: 12,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.32 : 19,054.36 = 8,772.79 : x
  2. Step 2: Convert to fraction form
    13,817.32/19,054.36 = 8,772.79/x
  3. Step 3: Cross multiply
    13,817.32x = 19,054.36 × 8,772.79
  4. Step 4: Simplify right side
    13,817.32x = 167,159,860.55
  5. Step 5: Solve for x
    x = 167,159,860.55/13,817.32
  6. Step 6: Final answer
    x = 12,097.85

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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.