Home / 13,980.13-19,292.57-7,692.91

Finding the Fourth Proportional to 13,980.13, 19,292.57 and 7,692.91

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Solution

The fourth proportional to 13,980.13, 19,292.57 and 7,692.91 is: 10,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.13 : 19,292.57 = 7,692.91 : x
  2. Step 2: Convert to fraction form
    13,980.13/19,292.57 = 7,692.91/x
  3. Step 3: Cross multiply
    13,980.13x = 19,292.57 × 7,692.91
  4. Step 4: Simplify right side
    13,980.13x = 148,416,004.68
  5. Step 5: Solve for x
    x = 148,416,004.68/13,980.13
  6. Step 6: Final answer
    x = 10,616.21

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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.