Home / 8,403.77-12,588.66-4,237.98

Finding the Fourth Proportional to 8,403.77, 12,588.66 and 4,237.98

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Solution

The fourth proportional to 8,403.77, 12,588.66 and 4,237.98 is: 6,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.77 : 12,588.66 = 4,237.98 : x
  2. Step 2: Convert to fraction form
    8,403.77/12,588.66 = 4,237.98/x
  3. Step 3: Cross multiply
    8,403.77x = 12,588.66 × 4,237.98
  4. Step 4: Simplify right side
    8,403.77x = 53,350,489.31
  5. Step 5: Solve for x
    x = 53,350,489.31/8,403.77
  6. Step 6: Final answer
    x = 6,348.40

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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.