Home / 9,739.32-13,440.50-5,911

Finding the Fourth Proportional to 9,739.32, 13,440.50 and 5,911

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Solution

The fourth proportional to 9,739.32, 13,440.50 and 5,911 is: 8,157.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.32 : 13,440.50 = 5,911 : x
  2. Step 2: Convert to fraction form
    9,739.32/13,440.50 = 5,911/x
  3. Step 3: Cross multiply
    9,739.32x = 13,440.50 × 5,911
  4. Step 4: Simplify right side
    9,739.32x = 79,446,795.50
  5. Step 5: Solve for x
    x = 79,446,795.50/9,739.32
  6. Step 6: Final answer
    x = 8,157.32

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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.