Home / 13,525.39-18,670.24-12,106.57

Finding the Fourth Proportional to 13,525.39, 18,670.24 and 12,106.57

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Solution

The fourth proportional to 13,525.39, 18,670.24 and 12,106.57 is: 16,711.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.39 : 18,670.24 = 12,106.57 : x
  2. Step 2: Convert to fraction form
    13,525.39/18,670.24 = 12,106.57/x
  3. Step 3: Cross multiply
    13,525.39x = 18,670.24 × 12,106.57
  4. Step 4: Simplify right side
    13,525.39x = 226,032,567.48
  5. Step 5: Solve for x
    x = 226,032,567.48/13,525.39
  6. Step 6: Final answer
    x = 16,711.72

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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.