Home / 11,320.36-15,623.96-6,604.63

Finding the Fourth Proportional to 11,320.36, 15,623.96 and 6,604.63

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Solution

The fourth proportional to 11,320.36, 15,623.96 and 6,604.63 is: 9,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.36 : 15,623.96 = 6,604.63 : x
  2. Step 2: Convert to fraction form
    11,320.36/15,623.96 = 6,604.63/x
  3. Step 3: Cross multiply
    11,320.36x = 15,623.96 × 6,604.63
  4. Step 4: Simplify right side
    11,320.36x = 103,190,402.85
  5. Step 5: Solve for x
    x = 103,190,402.85/11,320.36
  6. Step 6: Final answer
    x = 9,115.47

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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.