Home / 18,292.62-27,430.28-8,428.98

Finding the Fourth Proportional to 18,292.62, 27,430.28 and 8,428.98

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Solution

The fourth proportional to 18,292.62, 27,430.28 and 8,428.98 is: 12,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.62 : 27,430.28 = 8,428.98 : x
  2. Step 2: Convert to fraction form
    18,292.62/27,430.28 = 8,428.98/x
  3. Step 3: Cross multiply
    18,292.62x = 27,430.28 × 8,428.98
  4. Step 4: Simplify right side
    18,292.62x = 231,209,239.37
  5. Step 5: Solve for x
    x = 231,209,239.37/18,292.62
  6. Step 6: Final answer
    x = 12,639.48

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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.