Home / 8,045.89-12,070.67-2,851.76

Finding the Fourth Proportional to 8,045.89, 12,070.67 and 2,851.76

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Solution

The fourth proportional to 8,045.89, 12,070.67 and 2,851.76 is: 4,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045.89 : 12,070.67 = 2,851.76 : x
  2. Step 2: Convert to fraction form
    8,045.89/12,070.67 = 2,851.76/x
  3. Step 3: Cross multiply
    8,045.89x = 12,070.67 × 2,851.76
  4. Step 4: Simplify right side
    8,045.89x = 34,422,639.62
  5. Step 5: Solve for x
    x = 34,422,639.62/8,045.89
  6. Step 6: Final answer
    x = 4,278.29

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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.