Home / 8,038.63-12,112.72-6,609.79

Finding the Fourth Proportional to 8,038.63, 12,112.72 and 6,609.79

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Solution

The fourth proportional to 8,038.63, 12,112.72 and 6,609.79 is: 9,959.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,038.63 : 12,112.72 = 6,609.79 : x
  2. Step 2: Convert to fraction form
    8,038.63/12,112.72 = 6,609.79/x
  3. Step 3: Cross multiply
    8,038.63x = 12,112.72 × 6,609.79
  4. Step 4: Simplify right side
    8,038.63x = 80,062,535.53
  5. Step 5: Solve for x
    x = 80,062,535.53/8,038.63
  6. Step 6: Final answer
    x = 9,959.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.