Home / 18,835.07-28,258.05-10,521.27

Finding the Fourth Proportional to 18,835.07, 28,258.05 and 10,521.27

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Solution

The fourth proportional to 18,835.07, 28,258.05 and 10,521.27 is: 15,784.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.07 : 28,258.05 = 10,521.27 : x
  2. Step 2: Convert to fraction form
    18,835.07/28,258.05 = 10,521.27/x
  3. Step 3: Cross multiply
    18,835.07x = 28,258.05 × 10,521.27
  4. Step 4: Simplify right side
    18,835.07x = 297,310,573.72
  5. Step 5: Solve for x
    x = 297,310,573.72/18,835.07
  6. Step 6: Final answer
    x = 15,784.95

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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.