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Finding the Fourth Proportional to 14,480.55, 19,983.94 and 8,814.40

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Solution

The fourth proportional to 14,480.55, 19,983.94 and 8,814.40 is: 12,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.55 : 19,983.94 = 8,814.40 : x
  2. Step 2: Convert to fraction form
    14,480.55/19,983.94 = 8,814.40/x
  3. Step 3: Cross multiply
    14,480.55x = 19,983.94 × 8,814.40
  4. Step 4: Simplify right side
    14,480.55x = 176,146,368.74
  5. Step 5: Solve for x
    x = 176,146,368.74/14,480.55
  6. Step 6: Final answer
    x = 12,164.34

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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.