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Finding the Fourth Proportional to 9,169.95, 12,660.42 and 6,303.45

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Solution

The fourth proportional to 9,169.95, 12,660.42 and 6,303.45 is: 8,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.95 : 12,660.42 = 6,303.45 : x
  2. Step 2: Convert to fraction form
    9,169.95/12,660.42 = 6,303.45/x
  3. Step 3: Cross multiply
    9,169.95x = 12,660.42 × 6,303.45
  4. Step 4: Simplify right side
    9,169.95x = 79,804,277.07
  5. Step 5: Solve for x
    x = 79,804,277.07/9,169.95
  6. Step 6: Final answer
    x = 8,702.80

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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.