Home / 13,676.81-18,886.43-10,313.87

Finding the Fourth Proportional to 13,676.81, 18,886.43 and 10,313.87

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Solution

The fourth proportional to 13,676.81, 18,886.43 and 10,313.87 is: 14,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.81 : 18,886.43 = 10,313.87 : x
  2. Step 2: Convert to fraction form
    13,676.81/18,886.43 = 10,313.87/x
  3. Step 3: Cross multiply
    13,676.81x = 18,886.43 × 10,313.87
  4. Step 4: Simplify right side
    13,676.81x = 194,792,115.14
  5. Step 5: Solve for x
    x = 194,792,115.14/13,676.81
  6. Step 6: Final answer
    x = 14,242.52

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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.