Home / 18,913.02-28,373.86-5,765.64

Finding the Fourth Proportional to 18,913.02, 28,373.86 and 5,765.64

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Solution

The fourth proportional to 18,913.02, 28,373.86 and 5,765.64 is: 8,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.02 : 28,373.86 = 5,765.64 : x
  2. Step 2: Convert to fraction form
    18,913.02/28,373.86 = 5,765.64/x
  3. Step 3: Cross multiply
    18,913.02x = 28,373.86 × 5,765.64
  4. Step 4: Simplify right side
    18,913.02x = 163,593,462.17
  5. Step 5: Solve for x
    x = 163,593,462.17/18,913.02
  6. Step 6: Final answer
    x = 8,649.78

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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.