Home / 18,538.40-25,582.56-10,154.72

Finding the Fourth Proportional to 18,538.40, 25,582.56 and 10,154.72

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Solution

The fourth proportional to 18,538.40, 25,582.56 and 10,154.72 is: 14,013.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.40 : 25,582.56 = 10,154.72 : x
  2. Step 2: Convert to fraction form
    18,538.40/25,582.56 = 10,154.72/x
  3. Step 3: Cross multiply
    18,538.40x = 25,582.56 × 10,154.72
  4. Step 4: Simplify right side
    18,538.40x = 259,783,733.68
  5. Step 5: Solve for x
    x = 259,783,733.68/18,538.40
  6. Step 6: Final answer
    x = 14,013.28

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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.