Home / 8,705.88-12,004.20-6,606.36

Finding the Fourth Proportional to 8,705.88, 12,004.20 and 6,606.36

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Solution

The fourth proportional to 8,705.88, 12,004.20 and 6,606.36 is: 9,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.88 : 12,004.20 = 6,606.36 : x
  2. Step 2: Convert to fraction form
    8,705.88/12,004.20 = 6,606.36/x
  3. Step 3: Cross multiply
    8,705.88x = 12,004.20 × 6,606.36
  4. Step 4: Simplify right side
    8,705.88x = 79,304,066.71
  5. Step 5: Solve for x
    x = 79,304,066.71/8,705.88
  6. Step 6: Final answer
    x = 9,109.25

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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.