Home / 14,130.30-21,195.45-13,266.30

Finding the Fourth Proportional to 14,130.30, 21,195.45 and 13,266.30

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Solution

The fourth proportional to 14,130.30, 21,195.45 and 13,266.30 is: 19,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.30 : 21,195.45 = 13,266.30 : x
  2. Step 2: Convert to fraction form
    14,130.30/21,195.45 = 13,266.30/x
  3. Step 3: Cross multiply
    14,130.30x = 21,195.45 × 13,266.30
  4. Step 4: Simplify right side
    14,130.30x = 281,185,198.34
  5. Step 5: Solve for x
    x = 281,185,198.34/14,130.30
  6. Step 6: Final answer
    x = 19,899.45

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Double scale
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Similar ratio
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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.