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Finding the Fourth Proportional to 14,480.16, 19,982.88 and 8,193.84

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Solution

The fourth proportional to 14,480.16, 19,982.88 and 8,193.84 is: 11,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.16 : 19,982.88 = 8,193.84 : x
  2. Step 2: Convert to fraction form
    14,480.16/19,982.88 = 8,193.84/x
  3. Step 3: Cross multiply
    14,480.16x = 19,982.88 × 8,193.84
  4. Step 4: Simplify right side
    14,480.16x = 163,736,521.46
  5. Step 5: Solve for x
    x = 163,736,521.46/14,480.16
  6. Step 6: Final answer
    x = 11,307.65

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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.