Home / 13,590.99-20,394.38-5,692.81

Finding the Fourth Proportional to 13,590.99, 20,394.38 and 5,692.81

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Solution

The fourth proportional to 13,590.99, 20,394.38 and 5,692.81 is: 8,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.99 : 20,394.38 = 5,692.81 : x
  2. Step 2: Convert to fraction form
    13,590.99/20,394.38 = 5,692.81/x
  3. Step 3: Cross multiply
    13,590.99x = 20,394.38 × 5,692.81
  4. Step 4: Simplify right side
    13,590.99x = 116,101,274.53
  5. Step 5: Solve for x
    x = 116,101,274.53/13,590.99
  6. Step 6: Final answer
    x = 8,542.52

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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.