Home / 14,478.45-19,977.69-8,511.33

Finding the Fourth Proportional to 14,478.45, 19,977.69 and 8,511.33

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Solution

The fourth proportional to 14,478.45, 19,977.69 and 8,511.33 is: 11,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.45 : 19,977.69 = 8,511.33 : x
  2. Step 2: Convert to fraction form
    14,478.45/19,977.69 = 8,511.33/x
  3. Step 3: Cross multiply
    14,478.45x = 19,977.69 × 8,511.33
  4. Step 4: Simplify right side
    14,478.45x = 170,036,712.23
  5. Step 5: Solve for x
    x = 170,036,712.23/14,478.45
  6. Step 6: Final answer
    x = 11,744.12

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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.