Home / 12,855.51-19,284.99-4,533.57

Finding the Fourth Proportional to 12,855.51, 19,284.99 and 4,533.57

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Solution

The fourth proportional to 12,855.51, 19,284.99 and 4,533.57 is: 6,800.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.51 : 19,284.99 = 4,533.57 : x
  2. Step 2: Convert to fraction form
    12,855.51/19,284.99 = 4,533.57/x
  3. Step 3: Cross multiply
    12,855.51x = 19,284.99 × 4,533.57
  4. Step 4: Simplify right side
    12,855.51x = 87,429,852.11
  5. Step 5: Solve for x
    x = 87,429,852.11/12,855.51
  6. Step 6: Final answer
    x = 6,800.96

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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.