Home / 14,692.05-20,280.78-9,389.79

Finding the Fourth Proportional to 14,692.05, 20,280.78 and 9,389.79

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Solution

The fourth proportional to 14,692.05, 20,280.78 and 9,389.79 is: 12,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692.05 : 20,280.78 = 9,389.79 : x
  2. Step 2: Convert to fraction form
    14,692.05/20,280.78 = 9,389.79/x
  3. Step 3: Cross multiply
    14,692.05x = 20,280.78 × 9,389.79
  4. Step 4: Simplify right side
    14,692.05x = 190,432,265.24
  5. Step 5: Solve for x
    x = 190,432,265.24/14,692.05
  6. Step 6: Final answer
    x = 12,961.59

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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.