Home / 8,429.75-11,632.85-4,652.90

Finding the Fourth Proportional to 8,429.75, 11,632.85 and 4,652.90

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Solution

The fourth proportional to 8,429.75, 11,632.85 and 4,652.90 is: 6,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.75 : 11,632.85 = 4,652.90 : x
  2. Step 2: Convert to fraction form
    8,429.75/11,632.85 = 4,652.90/x
  3. Step 3: Cross multiply
    8,429.75x = 11,632.85 × 4,652.90
  4. Step 4: Simplify right side
    8,429.75x = 54,126,465.77
  5. Step 5: Solve for x
    x = 54,126,465.77/8,429.75
  6. Step 6: Final answer
    x = 6,420.89

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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.