Home / 13,266.77-18,308.57-7,299.09

Finding the Fourth Proportional to 13,266.77, 18,308.57 and 7,299.09

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Solution

The fourth proportional to 13,266.77, 18,308.57 and 7,299.09 is: 10,072.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.77 : 18,308.57 = 7,299.09 : x
  2. Step 2: Convert to fraction form
    13,266.77/18,308.57 = 7,299.09/x
  3. Step 3: Cross multiply
    13,266.77x = 18,308.57 × 7,299.09
  4. Step 4: Simplify right side
    13,266.77x = 133,635,863.71
  5. Step 5: Solve for x
    x = 133,635,863.71/13,266.77
  6. Step 6: Final answer
    x = 10,072.98

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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.