Home / 13,893.12-19,159.20-12,875.04

Finding the Fourth Proportional to 13,893.12, 19,159.20 and 12,875.04

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Solution

The fourth proportional to 13,893.12, 19,159.20 and 12,875.04 is: 17,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.12 : 19,159.20 = 12,875.04 : x
  2. Step 2: Convert to fraction form
    13,893.12/19,159.20 = 12,875.04/x
  3. Step 3: Cross multiply
    13,893.12x = 19,159.20 × 12,875.04
  4. Step 4: Simplify right side
    13,893.12x = 246,675,466.37
  5. Step 5: Solve for x
    x = 246,675,466.37/13,893.12
  6. Step 6: Final answer
    x = 17,755.22

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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.