Home / 8,439.32-11,646.78-4,713.32

Finding the Fourth Proportional to 8,439.32, 11,646.78 and 4,713.32

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Solution

The fourth proportional to 8,439.32, 11,646.78 and 4,713.32 is: 6,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.32 : 11,646.78 = 4,713.32 : x
  2. Step 2: Convert to fraction form
    8,439.32/11,646.78 = 4,713.32/x
  3. Step 3: Cross multiply
    8,439.32x = 11,646.78 × 4,713.32
  4. Step 4: Simplify right side
    8,439.32x = 54,895,001.11
  5. Step 5: Solve for x
    x = 54,895,001.11/8,439.32
  6. Step 6: Final answer
    x = 6,504.67

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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.