Home / 8,418.81-12,612.04-4,709.79

Finding the Fourth Proportional to 8,418.81, 12,612.04 and 4,709.79

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Solution

The fourth proportional to 8,418.81, 12,612.04 and 4,709.79 is: 7,055.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.81 : 12,612.04 = 4,709.79 : x
  2. Step 2: Convert to fraction form
    8,418.81/12,612.04 = 4,709.79/x
  3. Step 3: Cross multiply
    8,418.81x = 12,612.04 × 4,709.79
  4. Step 4: Simplify right side
    8,418.81x = 59,400,036.32
  5. Step 5: Solve for x
    x = 59,400,036.32/8,418.81
  6. Step 6: Final answer
    x = 7,055.63

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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.