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Finding the Fourth Proportional to 9,779.46, 14,670.06 and 2,759.54

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Solution

The fourth proportional to 9,779.46, 14,670.06 and 2,759.54 is: 4,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779.46 : 14,670.06 = 2,759.54 : x
  2. Step 2: Convert to fraction form
    9,779.46/14,670.06 = 2,759.54/x
  3. Step 3: Cross multiply
    9,779.46x = 14,670.06 × 2,759.54
  4. Step 4: Simplify right side
    9,779.46x = 40,482,530.22
  5. Step 5: Solve for x
    x = 40,482,530.22/9,779.46
  6. Step 6: Final answer
    x = 4,139.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.