Home / 7,758.72-10,707.52-4,615.04

Finding the Fourth Proportional to 7,758.72, 10,707.52 and 4,615.04

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Solution

The fourth proportional to 7,758.72, 10,707.52 and 4,615.04 is: 6,369.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.72 : 10,707.52 = 4,615.04 : x
  2. Step 2: Convert to fraction form
    7,758.72/10,707.52 = 4,615.04/x
  3. Step 3: Cross multiply
    7,758.72x = 10,707.52 × 4,615.04
  4. Step 4: Simplify right side
    7,758.72x = 49,415,633.10
  5. Step 5: Solve for x
    x = 49,415,633.10/7,758.72
  6. Step 6: Final answer
    x = 6,369.04

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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.