Home / 11,639.88-17,423.10-7,474.32

Finding the Fourth Proportional to 11,639.88, 17,423.10 and 7,474.32

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Solution

The fourth proportional to 11,639.88, 17,423.10 and 7,474.32 is: 11,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.88 : 17,423.10 = 7,474.32 : x
  2. Step 2: Convert to fraction form
    11,639.88/17,423.10 = 7,474.32/x
  3. Step 3: Cross multiply
    11,639.88x = 17,423.10 × 7,474.32
  4. Step 4: Simplify right side
    11,639.88x = 130,225,824.79
  5. Step 5: Solve for x
    x = 130,225,824.79/11,639.88
  6. Step 6: Final answer
    x = 11,187.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.