Home / 8,669.70-11,964.10-4,690.72

Finding the Fourth Proportional to 8,669.70, 11,964.10 and 4,690.72

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Solution

The fourth proportional to 8,669.70, 11,964.10 and 4,690.72 is: 6,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.70 : 11,964.10 = 4,690.72 : x
  2. Step 2: Convert to fraction form
    8,669.70/11,964.10 = 4,690.72/x
  3. Step 3: Cross multiply
    8,669.70x = 11,964.10 × 4,690.72
  4. Step 4: Simplify right side
    8,669.70x = 56,120,261.34
  5. Step 5: Solve for x
    x = 56,120,261.34/8,669.70
  6. Step 6: Final answer
    x = 6,473.15

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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.