Home / 12,623.79-17,421.18-7,246.69

Finding the Fourth Proportional to 12,623.79, 17,421.18 and 7,246.69

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Solution

The fourth proportional to 12,623.79, 17,421.18 and 7,246.69 is: 10,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.79 : 17,421.18 = 7,246.69 : x
  2. Step 2: Convert to fraction form
    12,623.79/17,421.18 = 7,246.69/x
  3. Step 3: Cross multiply
    12,623.79x = 17,421.18 × 7,246.69
  4. Step 4: Simplify right side
    12,623.79x = 126,245,890.89
  5. Step 5: Solve for x
    x = 126,245,890.89/12,623.79
  6. Step 6: Final answer
    x = 10,000.63

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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.