Home / 12,576.74-18,853.76-4,779.95

Finding the Fourth Proportional to 12,576.74, 18,853.76 and 4,779.95

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Solution

The fourth proportional to 12,576.74, 18,853.76 and 4,779.95 is: 7,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.74 : 18,853.76 = 4,779.95 : x
  2. Step 2: Convert to fraction form
    12,576.74/18,853.76 = 4,779.95/x
  3. Step 3: Cross multiply
    12,576.74x = 18,853.76 × 4,779.95
  4. Step 4: Simplify right side
    12,576.74x = 90,119,947.79
  5. Step 5: Solve for x
    x = 90,119,947.79/12,576.74
  6. Step 6: Final answer
    x = 7,165.61

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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.