Home / 13,968.60-19,275.18-7,999.72

Finding the Fourth Proportional to 13,968.60, 19,275.18 and 7,999.72

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Solution

The fourth proportional to 13,968.60, 19,275.18 and 7,999.72 is: 11,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.60 : 19,275.18 = 7,999.72 : x
  2. Step 2: Convert to fraction form
    13,968.60/19,275.18 = 7,999.72/x
  3. Step 3: Cross multiply
    13,968.60x = 19,275.18 × 7,999.72
  4. Step 4: Simplify right side
    13,968.60x = 154,196,042.95
  5. Step 5: Solve for x
    x = 154,196,042.95/13,968.60
  6. Step 6: Final answer
    x = 11,038.76

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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.