Home / 18,359.34-27,539.28-5,211.74

Finding the Fourth Proportional to 18,359.34, 27,539.28 and 5,211.74

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Solution

The fourth proportional to 18,359.34, 27,539.28 and 5,211.74 is: 7,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.34 : 27,539.28 = 5,211.74 : x
  2. Step 2: Convert to fraction form
    18,359.34/27,539.28 = 5,211.74/x
  3. Step 3: Cross multiply
    18,359.34x = 27,539.28 × 5,211.74
  4. Step 4: Simplify right side
    18,359.34x = 143,527,429.45
  5. Step 5: Solve for x
    x = 143,527,429.45/18,359.34
  6. Step 6: Final answer
    x = 7,817.68

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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.