Home / 13,968.63-19,275.09-7,999.94

Finding the Fourth Proportional to 13,968.63, 19,275.09 and 7,999.94

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Solution

The fourth proportional to 13,968.63, 19,275.09 and 7,999.94 is: 11,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.63 : 19,275.09 = 7,999.94 : x
  2. Step 2: Convert to fraction form
    13,968.63/19,275.09 = 7,999.94/x
  3. Step 3: Cross multiply
    13,968.63x = 19,275.09 × 7,999.94
  4. Step 4: Simplify right side
    13,968.63x = 154,199,563.49
  5. Step 5: Solve for x
    x = 154,199,563.49/13,968.63
  6. Step 6: Final answer
    x = 11,038.99

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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.