Home / 13,123.10-19,684.65-5,331.92

Finding the Fourth Proportional to 13,123.10, 19,684.65 and 5,331.92

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Solution

The fourth proportional to 13,123.10, 19,684.65 and 5,331.92 is: 7,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.10 : 19,684.65 = 5,331.92 : x
  2. Step 2: Convert to fraction form
    13,123.10/19,684.65 = 5,331.92/x
  3. Step 3: Cross multiply
    13,123.10x = 19,684.65 × 5,331.92
  4. Step 4: Simplify right side
    13,123.10x = 104,956,880.60
  5. Step 5: Solve for x
    x = 104,956,880.60/13,123.10
  6. Step 6: Final answer
    x = 7,997.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.