Home / 19,692.36-29,529.90-7,209.15

Finding the Fourth Proportional to 19,692.36, 29,529.90 and 7,209.15

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Solution

The fourth proportional to 19,692.36, 29,529.90 and 7,209.15 is: 10,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,692.36 : 29,529.90 = 7,209.15 : x
  2. Step 2: Convert to fraction form
    19,692.36/29,529.90 = 7,209.15/x
  3. Step 3: Cross multiply
    19,692.36x = 29,529.90 × 7,209.15
  4. Step 4: Simplify right side
    19,692.36x = 212,885,478.59
  5. Step 5: Solve for x
    x = 212,885,478.59/19,692.36
  6. Step 6: Final answer
    x = 10,810.56

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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.