Home / 13,525.14-18,669.90-12,106.32

Finding the Fourth Proportional to 13,525.14, 18,669.90 and 12,106.32

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Solution

The fourth proportional to 13,525.14, 18,669.90 and 12,106.32 is: 16,711.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.14 : 18,669.90 = 12,106.32 : x
  2. Step 2: Convert to fraction form
    13,525.14/18,669.90 = 12,106.32/x
  3. Step 3: Cross multiply
    13,525.14x = 18,669.90 × 12,106.32
  4. Step 4: Simplify right side
    13,525.14x = 226,023,783.77
  5. Step 5: Solve for x
    x = 226,023,783.77/13,525.14
  6. Step 6: Final answer
    x = 16,711.38

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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.