Home / 12,305.23-16,981.59-7,000.54

Finding the Fourth Proportional to 12,305.23, 16,981.59 and 7,000.54

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Solution

The fourth proportional to 12,305.23, 16,981.59 and 7,000.54 is: 9,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.23 : 16,981.59 = 7,000.54 : x
  2. Step 2: Convert to fraction form
    12,305.23/16,981.59 = 7,000.54/x
  3. Step 3: Cross multiply
    12,305.23x = 16,981.59 × 7,000.54
  4. Step 4: Simplify right side
    12,305.23x = 118,880,300.06
  5. Step 5: Solve for x
    x = 118,880,300.06/12,305.23
  6. Step 6: Final answer
    x = 9,660.96

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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.