Home / 8,429.09-11,632.68-4,845.20

Finding the Fourth Proportional to 8,429.09, 11,632.68 and 4,845.20

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Solution

The fourth proportional to 8,429.09, 11,632.68 and 4,845.20 is: 6,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.09 : 11,632.68 = 4,845.20 : x
  2. Step 2: Convert to fraction form
    8,429.09/11,632.68 = 4,845.20/x
  3. Step 3: Cross multiply
    8,429.09x = 11,632.68 × 4,845.20
  4. Step 4: Simplify right side
    8,429.09x = 56,362,635.69
  5. Step 5: Solve for x
    x = 56,362,635.69/8,429.09
  6. Step 6: Final answer
    x = 6,686.68

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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.