Home / 11,277.80-16,916.70-11,124.20

Finding the Fourth Proportional to 11,277.80, 16,916.70 and 11,124.20

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Solution

The fourth proportional to 11,277.80, 16,916.70 and 11,124.20 is: 16,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.80 : 16,916.70 = 11,124.20 : x
  2. Step 2: Convert to fraction form
    11,277.80/16,916.70 = 11,124.20/x
  3. Step 3: Cross multiply
    11,277.80x = 16,916.70 × 11,124.20
  4. Step 4: Simplify right side
    11,277.80x = 188,184,754.14
  5. Step 5: Solve for x
    x = 188,184,754.14/11,277.80
  6. Step 6: Final answer
    x = 16,686.30

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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.