Home / 8,539.40-12,812.70-4,154.60

Finding the Fourth Proportional to 8,539.40, 12,812.70 and 4,154.60

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Solution

The fourth proportional to 8,539.40, 12,812.70 and 4,154.60 is: 6,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.40 : 12,812.70 = 4,154.60 : x
  2. Step 2: Convert to fraction form
    8,539.40/12,812.70 = 4,154.60/x
  3. Step 3: Cross multiply
    8,539.40x = 12,812.70 × 4,154.60
  4. Step 4: Simplify right side
    8,539.40x = 53,231,643.42
  5. Step 5: Solve for x
    x = 53,231,643.42/8,539.40
  6. Step 6: Final answer
    x = 6,233.65

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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.