Home / 7,759.72-11,632.02-4,289.68

Finding the Fourth Proportional to 7,759.72, 11,632.02 and 4,289.68

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Solution

The fourth proportional to 7,759.72, 11,632.02 and 4,289.68 is: 6,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.72 : 11,632.02 = 4,289.68 : x
  2. Step 2: Convert to fraction form
    7,759.72/11,632.02 = 4,289.68/x
  3. Step 3: Cross multiply
    7,759.72x = 11,632.02 × 4,289.68
  4. Step 4: Simplify right side
    7,759.72x = 49,897,643.55
  5. Step 5: Solve for x
    x = 49,897,643.55/7,759.72
  6. Step 6: Final answer
    x = 6,430.34

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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.