Home / 13,307.99-18,368.24-8,001.78

Finding the Fourth Proportional to 13,307.99, 18,368.24 and 8,001.78

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Solution

The fourth proportional to 13,307.99, 18,368.24 and 8,001.78 is: 11,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.99 : 18,368.24 = 8,001.78 : x
  2. Step 2: Convert to fraction form
    13,307.99/18,368.24 = 8,001.78/x
  3. Step 3: Cross multiply
    13,307.99x = 18,368.24 × 8,001.78
  4. Step 4: Simplify right side
    13,307.99x = 146,978,575.46
  5. Step 5: Solve for x
    x = 146,978,575.46/13,307.99
  6. Step 6: Final answer
    x = 11,044.39

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Similar ratio
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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.