Home / 13,968.13-19,274.40-7,999.44

Finding the Fourth Proportional to 13,968.13, 19,274.40 and 7,999.44

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Solution

The fourth proportional to 13,968.13, 19,274.40 and 7,999.44 is: 11,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.13 : 19,274.40 = 7,999.44 : x
  2. Step 2: Convert to fraction form
    13,968.13/19,274.40 = 7,999.44/x
  3. Step 3: Cross multiply
    13,968.13x = 19,274.40 × 7,999.44
  4. Step 4: Simplify right side
    13,968.13x = 154,184,406.34
  5. Step 5: Solve for x
    x = 154,184,406.34/13,968.13
  6. Step 6: Final answer
    x = 11,038.30

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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.