Home / 18,771.02-28,154.10-6,288.11

Finding the Fourth Proportional to 18,771.02, 28,154.10 and 6,288.11

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Solution

The fourth proportional to 18,771.02, 28,154.10 and 6,288.11 is: 9,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.02 : 28,154.10 = 6,288.11 : x
  2. Step 2: Convert to fraction form
    18,771.02/28,154.10 = 6,288.11/x
  3. Step 3: Cross multiply
    18,771.02x = 28,154.10 × 6,288.11
  4. Step 4: Simplify right side
    18,771.02x = 177,036,077.75
  5. Step 5: Solve for x
    x = 177,036,077.75/18,771.02
  6. Step 6: Final answer
    x = 9,431.35

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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.