Home / 12,342.51-18,509.04-4,442.76

Finding the Fourth Proportional to 12,342.51, 18,509.04 and 4,442.76

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Solution

The fourth proportional to 12,342.51, 18,509.04 and 4,442.76 is: 6,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.51 : 18,509.04 = 4,442.76 : x
  2. Step 2: Convert to fraction form
    12,342.51/18,509.04 = 4,442.76/x
  3. Step 3: Cross multiply
    12,342.51x = 18,509.04 × 4,442.76
  4. Step 4: Simplify right side
    12,342.51x = 82,231,222.55
  5. Step 5: Solve for x
    x = 82,231,222.55/12,342.51
  6. Step 6: Final answer
    x = 6,662.44

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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.