Home / 12,559.12-18,832.98-4,762.40

Finding the Fourth Proportional to 12,559.12, 18,832.98 and 4,762.40

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Solution

The fourth proportional to 12,559.12, 18,832.98 and 4,762.40 is: 7,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.12 : 18,832.98 = 4,762.40 : x
  2. Step 2: Convert to fraction form
    12,559.12/18,832.98 = 4,762.40/x
  3. Step 3: Cross multiply
    12,559.12x = 18,832.98 × 4,762.40
  4. Step 4: Simplify right side
    12,559.12x = 89,690,183.95
  5. Step 5: Solve for x
    x = 89,690,183.95/12,559.12
  6. Step 6: Final answer
    x = 7,141.44

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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.