Home / 8,461.51-12,688.76-3,195.62

Finding the Fourth Proportional to 8,461.51, 12,688.76 and 3,195.62

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Solution

The fourth proportional to 8,461.51, 12,688.76 and 3,195.62 is: 4,792.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.51 : 12,688.76 = 3,195.62 : x
  2. Step 2: Convert to fraction form
    8,461.51/12,688.76 = 3,195.62/x
  3. Step 3: Cross multiply
    8,461.51x = 12,688.76 × 3,195.62
  4. Step 4: Simplify right side
    8,461.51x = 40,548,455.23
  5. Step 5: Solve for x
    x = 40,548,455.23/8,461.51
  6. Step 6: Final answer
    x = 4,792.11

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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.