Home / 12,623.98-17,421.45-7,246.89

Finding the Fourth Proportional to 12,623.98, 17,421.45 and 7,246.89

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Solution

The fourth proportional to 12,623.98, 17,421.45 and 7,246.89 is: 10,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.98 : 17,421.45 = 7,246.89 : x
  2. Step 2: Convert to fraction form
    12,623.98/17,421.45 = 7,246.89/x
  3. Step 3: Cross multiply
    12,623.98x = 17,421.45 × 7,246.89
  4. Step 4: Simplify right side
    12,623.98x = 126,251,331.79
  5. Step 5: Solve for x
    x = 126,251,331.79/12,623.98
  6. Step 6: Final answer
    x = 10,000.91

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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.