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Finding the Fourth Proportional to 14,492.82, 19,995.40 and 8,118.46

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Solution

The fourth proportional to 14,492.82, 19,995.40 and 8,118.46 is: 11,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,492.82 : 19,995.40 = 8,118.46 : x
  2. Step 2: Convert to fraction form
    14,492.82/19,995.40 = 8,118.46/x
  3. Step 3: Cross multiply
    14,492.82x = 19,995.40 × 8,118.46
  4. Step 4: Simplify right side
    14,492.82x = 162,331,855.08
  5. Step 5: Solve for x
    x = 162,331,855.08/14,492.82
  6. Step 6: Final answer
    x = 11,200.85

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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.