Home / 8,637.72-12,959.31-3,090.94

Finding the Fourth Proportional to 8,637.72, 12,959.31 and 3,090.94

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Solution

The fourth proportional to 8,637.72, 12,959.31 and 3,090.94 is: 4,637.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.72 : 12,959.31 = 3,090.94 : x
  2. Step 2: Convert to fraction form
    8,637.72/12,959.31 = 3,090.94/x
  3. Step 3: Cross multiply
    8,637.72x = 12,959.31 × 3,090.94
  4. Step 4: Simplify right side
    8,637.72x = 40,056,428.84
  5. Step 5: Solve for x
    x = 40,056,428.84/8,637.72
  6. Step 6: Final answer
    x = 4,637.39

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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.