Home / 8,430.75-12,637.49-3,503.25

Finding the Fourth Proportional to 8,430.75, 12,637.49 and 3,503.25

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Solution

The fourth proportional to 8,430.75, 12,637.49 and 3,503.25 is: 5,251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.75 : 12,637.49 = 3,503.25 : x
  2. Step 2: Convert to fraction form
    8,430.75/12,637.49 = 3,503.25/x
  3. Step 3: Cross multiply
    8,430.75x = 12,637.49 × 3,503.25
  4. Step 4: Simplify right side
    8,430.75x = 44,272,269.33
  5. Step 5: Solve for x
    x = 44,272,269.33/8,430.75
  6. Step 6: Final answer
    x = 5,251.28

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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.