Home / 8,430.20-12,647.74-2,587.66

Finding the Fourth Proportional to 8,430.20, 12,647.74 and 2,587.66

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Solution

The fourth proportional to 8,430.20, 12,647.74 and 2,587.66 is: 3,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.20 : 12,647.74 = 2,587.66 : x
  2. Step 2: Convert to fraction form
    8,430.20/12,647.74 = 2,587.66/x
  3. Step 3: Cross multiply
    8,430.20x = 12,647.74 × 2,587.66
  4. Step 4: Simplify right side
    8,430.20x = 32,728,050.89
  5. Step 5: Solve for x
    x = 32,728,050.89/8,430.20
  6. Step 6: Final answer
    x = 3,882.24

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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.