Home / 12,496.80-18,756.48-6,658.32

Finding the Fourth Proportional to 12,496.80, 18,756.48 and 6,658.32

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Solution

The fourth proportional to 12,496.80, 18,756.48 and 6,658.32 is: 9,993.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.80 : 18,756.48 = 6,658.32 : x
  2. Step 2: Convert to fraction form
    12,496.80/18,756.48 = 6,658.32/x
  3. Step 3: Cross multiply
    12,496.80x = 18,756.48 × 6,658.32
  4. Step 4: Simplify right side
    12,496.80x = 124,886,645.91
  5. Step 5: Solve for x
    x = 124,886,645.91/12,496.80
  6. Step 6: Final answer
    x = 9,993.49

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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.