Home / 14,385.60-19,692.72-13,938.48

Finding the Fourth Proportional to 14,385.60, 19,692.72 and 13,938.48

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Solution

The fourth proportional to 14,385.60, 19,692.72 and 13,938.48 is: 19,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.60 : 19,692.72 = 13,938.48 : x
  2. Step 2: Convert to fraction form
    14,385.60/19,692.72 = 13,938.48/x
  3. Step 3: Cross multiply
    14,385.60x = 19,692.72 × 13,938.48
  4. Step 4: Simplify right side
    14,385.60x = 274,486,583.87
  5. Step 5: Solve for x
    x = 274,486,583.87/14,385.60
  6. Step 6: Final answer
    x = 19,080.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.