Home / 13,128.58-19,692.60-4,363.58

Finding the Fourth Proportional to 13,128.58, 19,692.60 and 4,363.58

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Solution

The fourth proportional to 13,128.58, 19,692.60 and 4,363.58 is: 6,545.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.58 : 19,692.60 = 4,363.58 : x
  2. Step 2: Convert to fraction form
    13,128.58/19,692.60 = 4,363.58/x
  3. Step 3: Cross multiply
    13,128.58x = 19,692.60 × 4,363.58
  4. Step 4: Simplify right side
    13,128.58x = 85,930,235.51
  5. Step 5: Solve for x
    x = 85,930,235.51/13,128.58
  6. Step 6: Final answer
    x = 6,545.28

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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.