Home / 13,968.72-19,275.98-7,999.02

Finding the Fourth Proportional to 13,968.72, 19,275.98 and 7,999.02

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Solution

The fourth proportional to 13,968.72, 19,275.98 and 7,999.02 is: 11,038.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.72 : 19,275.98 = 7,999.02 : x
  2. Step 2: Convert to fraction form
    13,968.72/19,275.98 = 7,999.02/x
  3. Step 3: Cross multiply
    13,968.72x = 19,275.98 × 7,999.02
  4. Step 4: Simplify right side
    13,968.72x = 154,188,909.54
  5. Step 5: Solve for x
    x = 154,188,909.54/13,968.72
  6. Step 6: Final answer
    x = 11,038.16

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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.