Home / 18,748.63-28,136.85-8,887.93

Finding the Fourth Proportional to 18,748.63, 28,136.85 and 8,887.93

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Solution

The fourth proportional to 18,748.63, 28,136.85 and 8,887.93 is: 13,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.63 : 28,136.85 = 8,887.93 : x
  2. Step 2: Convert to fraction form
    18,748.63/28,136.85 = 8,887.93/x
  3. Step 3: Cross multiply
    18,748.63x = 28,136.85 × 8,887.93
  4. Step 4: Simplify right side
    18,748.63x = 250,078,353.22
  5. Step 5: Solve for x
    x = 250,078,353.22/18,748.63
  6. Step 6: Final answer
    x = 13,338.49

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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.