Home / 13,324.57-18,387.61-7,274.58

Finding the Fourth Proportional to 13,324.57, 18,387.61 and 7,274.58

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Solution

The fourth proportional to 13,324.57, 18,387.61 and 7,274.58 is: 10,038.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.57 : 18,387.61 = 7,274.58 : x
  2. Step 2: Convert to fraction form
    13,324.57/18,387.61 = 7,274.58/x
  3. Step 3: Cross multiply
    13,324.57x = 18,387.61 × 7,274.58
  4. Step 4: Simplify right side
    13,324.57x = 133,762,052.81
  5. Step 5: Solve for x
    x = 133,762,052.81/13,324.57
  6. Step 6: Final answer
    x = 10,038.75

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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.