Home / 13,161.28-18,154.08-7,852

Finding the Fourth Proportional to 13,161.28, 18,154.08 and 7,852

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Solution

The fourth proportional to 13,161.28, 18,154.08 and 7,852 is: 10,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.28 : 18,154.08 = 7,852 : x
  2. Step 2: Convert to fraction form
    13,161.28/18,154.08 = 7,852/x
  3. Step 3: Cross multiply
    13,161.28x = 18,154.08 × 7,852
  4. Step 4: Simplify right side
    13,161.28x = 142,545,836.16
  5. Step 5: Solve for x
    x = 142,545,836.16/13,161.28
  6. Step 6: Final answer
    x = 10,830.70

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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.