Home / 8,133.90-12,197.40-2,585.76

Finding the Fourth Proportional to 8,133.90, 12,197.40 and 2,585.76

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Solution

The fourth proportional to 8,133.90, 12,197.40 and 2,585.76 is: 3,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.90 : 12,197.40 = 2,585.76 : x
  2. Step 2: Convert to fraction form
    8,133.90/12,197.40 = 2,585.76/x
  3. Step 3: Cross multiply
    8,133.90x = 12,197.40 × 2,585.76
  4. Step 4: Simplify right side
    8,133.90x = 31,539,549.02
  5. Step 5: Solve for x
    x = 31,539,549.02/8,133.90
  6. Step 6: Final answer
    x = 3,877.54

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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.