Home / 11,455.62-15,807.37-6,418.68

Finding the Fourth Proportional to 11,455.62, 15,807.37 and 6,418.68

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Solution

The fourth proportional to 11,455.62, 15,807.37 and 6,418.68 is: 8,857.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.62 : 15,807.37 = 6,418.68 : x
  2. Step 2: Convert to fraction form
    11,455.62/15,807.37 = 6,418.68/x
  3. Step 3: Cross multiply
    11,455.62x = 15,807.37 × 6,418.68
  4. Step 4: Simplify right side
    11,455.62x = 101,462,449.67
  5. Step 5: Solve for x
    x = 101,462,449.67/11,455.62
  6. Step 6: Final answer
    x = 8,857.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.