Home / 8,541.99-12,815.06-4,158.45

Finding the Fourth Proportional to 8,541.99, 12,815.06 and 4,158.45

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Solution

The fourth proportional to 8,541.99, 12,815.06 and 4,158.45 is: 6,238.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.99 : 12,815.06 = 4,158.45 : x
  2. Step 2: Convert to fraction form
    8,541.99/12,815.06 = 4,158.45/x
  3. Step 3: Cross multiply
    8,541.99x = 12,815.06 × 4,158.45
  4. Step 4: Simplify right side
    8,541.99x = 53,290,765.46
  5. Step 5: Solve for x
    x = 53,290,765.46/8,541.99
  6. Step 6: Final answer
    x = 6,238.68

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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.