Home / 18,771.04-28,158.08-6,291.17

Finding the Fourth Proportional to 18,771.04, 28,158.08 and 6,291.17

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Solution

The fourth proportional to 18,771.04, 28,158.08 and 6,291.17 is: 9,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.04 : 28,158.08 = 6,291.17 : x
  2. Step 2: Convert to fraction form
    18,771.04/28,158.08 = 6,291.17/x
  3. Step 3: Cross multiply
    18,771.04x = 28,158.08 × 6,291.17
  4. Step 4: Simplify right side
    18,771.04x = 177,147,236.89
  5. Step 5: Solve for x
    x = 177,147,236.89/18,771.04
  6. Step 6: Final answer
    x = 9,437.26

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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.