Home / 14,189.04-19,581.72-8,218.80

Finding the Fourth Proportional to 14,189.04, 19,581.72 and 8,218.80

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Solution

The fourth proportional to 14,189.04, 19,581.72 and 8,218.80 is: 11,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.04 : 19,581.72 = 8,218.80 : x
  2. Step 2: Convert to fraction form
    14,189.04/19,581.72 = 8,218.80/x
  3. Step 3: Cross multiply
    14,189.04x = 19,581.72 × 8,218.80
  4. Step 4: Simplify right side
    14,189.04x = 160,938,240.34
  5. Step 5: Solve for x
    x = 160,938,240.34/14,189.04
  6. Step 6: Final answer
    x = 11,342.43

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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.