Home / 13,809.03-19,056.31-8,144.02

Finding the Fourth Proportional to 13,809.03, 19,056.31 and 8,144.02

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Solution

The fourth proportional to 13,809.03, 19,056.31 and 8,144.02 is: 11,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.03 : 19,056.31 = 8,144.02 : x
  2. Step 2: Convert to fraction form
    13,809.03/19,056.31 = 8,144.02/x
  3. Step 3: Cross multiply
    13,809.03x = 19,056.31 × 8,144.02
  4. Step 4: Simplify right side
    13,809.03x = 155,194,969.77
  5. Step 5: Solve for x
    x = 155,194,969.77/13,809.03
  6. Step 6: Final answer
    x = 11,238.66

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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.