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Finding the Fourth Proportional to 14,363.34, 19,818.98 and 7,989.10

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Solution

The fourth proportional to 14,363.34, 19,818.98 and 7,989.10 is: 11,023.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.34 : 19,818.98 = 7,989.10 : x
  2. Step 2: Convert to fraction form
    14,363.34/19,818.98 = 7,989.10/x
  3. Step 3: Cross multiply
    14,363.34x = 19,818.98 × 7,989.10
  4. Step 4: Simplify right side
    14,363.34x = 158,335,813.12
  5. Step 5: Solve for x
    x = 158,335,813.12/14,363.34
  6. Step 6: Final answer
    x = 11,023.61

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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.