Home / 8,135.10-12,186.45-4,430.70

Finding the Fourth Proportional to 8,135.10, 12,186.45 and 4,430.70

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Solution

The fourth proportional to 8,135.10, 12,186.45 and 4,430.70 is: 6,637.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.10 : 12,186.45 = 4,430.70 : x
  2. Step 2: Convert to fraction form
    8,135.10/12,186.45 = 4,430.70/x
  3. Step 3: Cross multiply
    8,135.10x = 12,186.45 × 4,430.70
  4. Step 4: Simplify right side
    8,135.10x = 53,994,504.02
  5. Step 5: Solve for x
    x = 53,994,504.02/8,135.10
  6. Step 6: Final answer
    x = 6,637.23

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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.