Home / 13,967.18-19,275.78-8,000.72

Finding the Fourth Proportional to 13,967.18, 19,275.78 and 8,000.72

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Solution

The fourth proportional to 13,967.18, 19,275.78 and 8,000.72 is: 11,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.18 : 19,275.78 = 8,000.72 : x
  2. Step 2: Convert to fraction form
    13,967.18/19,275.78 = 8,000.72/x
  3. Step 3: Cross multiply
    13,967.18x = 19,275.78 × 8,000.72
  4. Step 4: Simplify right side
    13,967.18x = 154,220,118.56
  5. Step 5: Solve for x
    x = 154,220,118.56/13,967.18
  6. Step 6: Final answer
    x = 11,041.61

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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.