Home / 18,923.63-28,385.34-5,775.81

Finding the Fourth Proportional to 18,923.63, 28,385.34 and 5,775.81

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Solution

The fourth proportional to 18,923.63, 28,385.34 and 5,775.81 is: 8,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.63 : 28,385.34 = 5,775.81 : x
  2. Step 2: Convert to fraction form
    18,923.63/28,385.34 = 5,775.81/x
  3. Step 3: Cross multiply
    18,923.63x = 28,385.34 × 5,775.81
  4. Step 4: Simplify right side
    18,923.63x = 163,948,202.52
  5. Step 5: Solve for x
    x = 163,948,202.52/18,923.63
  6. Step 6: Final answer
    x = 8,663.68

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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.