Home / 8,637.64-11,920.67-4,861.42

Finding the Fourth Proportional to 8,637.64, 11,920.67 and 4,861.42

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Solution

The fourth proportional to 8,637.64, 11,920.67 and 4,861.42 is: 6,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.64 : 11,920.67 = 4,861.42 : x
  2. Step 2: Convert to fraction form
    8,637.64/11,920.67 = 4,861.42/x
  3. Step 3: Cross multiply
    8,637.64x = 11,920.67 × 4,861.42
  4. Step 4: Simplify right side
    8,637.64x = 57,951,347.67
  5. Step 5: Solve for x
    x = 57,951,347.67/8,637.64
  6. Step 6: Final answer
    x = 6,709.17

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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.