Home / 13,666.62-18,840.69-10,313.22

Finding the Fourth Proportional to 13,666.62, 18,840.69 and 10,313.22

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Solution

The fourth proportional to 13,666.62, 18,840.69 and 10,313.22 is: 14,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.62 : 18,840.69 = 10,313.22 : x
  2. Step 2: Convert to fraction form
    13,666.62/18,840.69 = 10,313.22/x
  3. Step 3: Cross multiply
    13,666.62x = 18,840.69 × 10,313.22
  4. Step 4: Simplify right side
    13,666.62x = 194,308,180.92
  5. Step 5: Solve for x
    x = 194,308,180.92/13,666.62
  6. Step 6: Final answer
    x = 14,217.72

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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.