Home / 13,809.04-19,056.32-8,144.02

Finding the Fourth Proportional to 13,809.04, 19,056.32 and 8,144.02

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Solution

The fourth proportional to 13,809.04, 19,056.32 and 8,144.02 is: 11,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.04 : 19,056.32 = 8,144.02 : x
  2. Step 2: Convert to fraction form
    13,809.04/19,056.32 = 8,144.02/x
  3. Step 3: Cross multiply
    13,809.04x = 19,056.32 × 8,144.02
  4. Step 4: Simplify right side
    13,809.04x = 155,195,051.21
  5. Step 5: Solve for x
    x = 155,195,051.21/13,809.04
  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.