Home / 15,453.98-21,307.68-13,059.62

Finding the Fourth Proportional to 15,453.98, 21,307.68 and 13,059.62

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Solution

The fourth proportional to 15,453.98, 21,307.68 and 13,059.62 is: 18,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.98 : 21,307.68 = 13,059.62 : x
  2. Step 2: Convert to fraction form
    15,453.98/21,307.68 = 13,059.62/x
  3. Step 3: Cross multiply
    15,453.98x = 21,307.68 × 13,059.62
  4. Step 4: Simplify right side
    15,453.98x = 278,270,097.34
  5. Step 5: Solve for x
    x = 278,270,097.34/15,453.98
  6. Step 6: Final answer
    x = 18,006.38

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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.