Home / 12,045.43-16,623.39-6,740.20

Finding the Fourth Proportional to 12,045.43, 16,623.39 and 6,740.20

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Solution

The fourth proportional to 12,045.43, 16,623.39 and 6,740.20 is: 9,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.43 : 16,623.39 = 6,740.20 : x
  2. Step 2: Convert to fraction form
    12,045.43/16,623.39 = 6,740.20/x
  3. Step 3: Cross multiply
    12,045.43x = 16,623.39 × 6,740.20
  4. Step 4: Simplify right side
    12,045.43x = 112,044,973.28
  5. Step 5: Solve for x
    x = 112,044,973.28/12,045.43
  6. Step 6: Final answer
    x = 9,301.87

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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.