Home / 13,984.72-19,300.80-12,803.68

Finding the Fourth Proportional to 13,984.72, 19,300.80 and 12,803.68

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Solution

The fourth proportional to 13,984.72, 19,300.80 and 12,803.68 is: 17,670.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.72 : 19,300.80 = 12,803.68 : x
  2. Step 2: Convert to fraction form
    13,984.72/19,300.80 = 12,803.68/x
  3. Step 3: Cross multiply
    13,984.72x = 19,300.80 × 12,803.68
  4. Step 4: Simplify right side
    13,984.72x = 247,121,266.94
  5. Step 5: Solve for x
    x = 247,121,266.94/13,984.72
  6. Step 6: Final answer
    x = 17,670.81

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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.