Home / 8,690.24-11,994.30-4,913.56

Finding the Fourth Proportional to 8,690.24, 11,994.30 and 4,913.56

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Solution

The fourth proportional to 8,690.24, 11,994.30 and 4,913.56 is: 6,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.24 : 11,994.30 = 4,913.56 : x
  2. Step 2: Convert to fraction form
    8,690.24/11,994.30 = 4,913.56/x
  3. Step 3: Cross multiply
    8,690.24x = 11,994.30 × 4,913.56
  4. Step 4: Simplify right side
    8,690.24x = 58,934,712.71
  5. Step 5: Solve for x
    x = 58,934,712.71/8,690.24
  6. Step 6: Final answer
    x = 6,781.71

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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.