Home / 13,582.35-18,743.70-7,921.02

Finding the Fourth Proportional to 13,582.35, 18,743.70 and 7,921.02

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Solution

The fourth proportional to 13,582.35, 18,743.70 and 7,921.02 is: 10,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.35 : 18,743.70 = 7,921.02 : x
  2. Step 2: Convert to fraction form
    13,582.35/18,743.70 = 7,921.02/x
  3. Step 3: Cross multiply
    13,582.35x = 18,743.70 × 7,921.02
  4. Step 4: Simplify right side
    13,582.35x = 148,469,222.57
  5. Step 5: Solve for x
    x = 148,469,222.57/13,582.35
  6. Step 6: Final answer
    x = 10,931.04

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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.