Home / 19,136.43-28,692.18-6,655.50

Finding the Fourth Proportional to 19,136.43, 28,692.18 and 6,655.50

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Solution

The fourth proportional to 19,136.43, 28,692.18 and 6,655.50 is: 9,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.43 : 28,692.18 = 6,655.50 : x
  2. Step 2: Convert to fraction form
    19,136.43/28,692.18 = 6,655.50/x
  3. Step 3: Cross multiply
    19,136.43x = 28,692.18 × 6,655.50
  4. Step 4: Simplify right side
    19,136.43x = 190,960,803.99
  5. Step 5: Solve for x
    x = 190,960,803.99/19,136.43
  6. Step 6: Final answer
    x = 9,978.91

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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.