Home / 11,320.84-15,623.48-6,540.99

Finding the Fourth Proportional to 11,320.84, 15,623.48 and 6,540.99

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Solution

The fourth proportional to 11,320.84, 15,623.48 and 6,540.99 is: 9,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.84 : 15,623.48 = 6,540.99 : x
  2. Step 2: Convert to fraction form
    11,320.84/15,623.48 = 6,540.99/x
  3. Step 3: Cross multiply
    11,320.84x = 15,623.48 × 6,540.99
  4. Step 4: Simplify right side
    11,320.84x = 102,193,026.45
  5. Step 5: Solve for x
    x = 102,193,026.45/11,320.84
  6. Step 6: Final answer
    x = 9,026.98

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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.