Home / 14,328.94-21,515.88-12,136.51

Finding the Fourth Proportional to 14,328.94, 21,515.88 and 12,136.51

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Solution

The fourth proportional to 14,328.94, 21,515.88 and 12,136.51 is: 18,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.94 : 21,515.88 = 12,136.51 : x
  2. Step 2: Convert to fraction form
    14,328.94/21,515.88 = 12,136.51/x
  3. Step 3: Cross multiply
    14,328.94x = 21,515.88 × 12,136.51
  4. Step 4: Simplify right side
    14,328.94x = 261,127,692.78
  5. Step 5: Solve for x
    x = 261,127,692.78/14,328.94
  6. Step 6: Final answer
    x = 18,223.80

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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.