Home / 7,319.72-10,102.74-6,729.32

Finding the Fourth Proportional to 7,319.72, 10,102.74 and 6,729.32

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Solution

The fourth proportional to 7,319.72, 10,102.74 and 6,729.32 is: 9,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.72 : 10,102.74 = 6,729.32 : x
  2. Step 2: Convert to fraction form
    7,319.72/10,102.74 = 6,729.32/x
  3. Step 3: Cross multiply
    7,319.72x = 10,102.74 × 6,729.32
  4. Step 4: Simplify right side
    7,319.72x = 67,984,570.34
  5. Step 5: Solve for x
    x = 67,984,570.34/7,319.72
  6. Step 6: Final answer
    x = 9,287.86

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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.