Home / 13,134.04-18,123.30-8,666.44

Finding the Fourth Proportional to 13,134.04, 18,123.30 and 8,666.44

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Solution

The fourth proportional to 13,134.04, 18,123.30 and 8,666.44 is: 11,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.04 : 18,123.30 = 8,666.44 : x
  2. Step 2: Convert to fraction form
    13,134.04/18,123.30 = 8,666.44/x
  3. Step 3: Cross multiply
    13,134.04x = 18,123.30 × 8,666.44
  4. Step 4: Simplify right side
    13,134.04x = 157,064,492.05
  5. Step 5: Solve for x
    x = 157,064,492.05/13,134.04
  6. Step 6: Final answer
    x = 11,958.58

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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.