Home / 12,439.32-18,658.98-3,205.32

Finding the Fourth Proportional to 12,439.32, 18,658.98 and 3,205.32

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Solution

The fourth proportional to 12,439.32, 18,658.98 and 3,205.32 is: 4,807.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.32 : 18,658.98 = 3,205.32 : x
  2. Step 2: Convert to fraction form
    12,439.32/18,658.98 = 3,205.32/x
  3. Step 3: Cross multiply
    12,439.32x = 18,658.98 × 3,205.32
  4. Step 4: Simplify right side
    12,439.32x = 59,808,001.77
  5. Step 5: Solve for x
    x = 59,808,001.77/12,439.32
  6. Step 6: Final answer
    x = 4,807.98

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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.