Home / 13,175.85-19,692.59-12,125.08

Finding the Fourth Proportional to 13,175.85, 19,692.59 and 12,125.08

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Solution

The fourth proportional to 13,175.85, 19,692.59 and 12,125.08 is: 18,122.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.85 : 19,692.59 = 12,125.08 : x
  2. Step 2: Convert to fraction form
    13,175.85/19,692.59 = 12,125.08/x
  3. Step 3: Cross multiply
    13,175.85x = 19,692.59 × 12,125.08
  4. Step 4: Simplify right side
    13,175.85x = 238,774,229.16
  5. Step 5: Solve for x
    x = 238,774,229.16/13,175.85
  6. Step 6: Final answer
    x = 18,122.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.