Home / 12,306.24-16,983-7,000.20

Finding the Fourth Proportional to 12,306.24, 16,983 and 7,000.20

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Solution

The fourth proportional to 12,306.24, 16,983 and 7,000.20 is: 9,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.24 : 16,983 = 7,000.20 : x
  2. Step 2: Convert to fraction form
    12,306.24/16,983 = 7,000.20/x
  3. Step 3: Cross multiply
    12,306.24x = 16,983 × 7,000.20
  4. Step 4: Simplify right side
    12,306.24x = 118,884,396.60
  5. Step 5: Solve for x
    x = 118,884,396.60/12,306.24
  6. Step 6: Final answer
    x = 9,660.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.