Home / 8,664.40-11,956.71-4,887.51

Finding the Fourth Proportional to 8,664.40, 11,956.71 and 4,887.51

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Solution

The fourth proportional to 8,664.40, 11,956.71 and 4,887.51 is: 6,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.40 : 11,956.71 = 4,887.51 : x
  2. Step 2: Convert to fraction form
    8,664.40/11,956.71 = 4,887.51/x
  3. Step 3: Cross multiply
    8,664.40x = 11,956.71 × 4,887.51
  4. Step 4: Simplify right side
    8,664.40x = 58,438,539.69
  5. Step 5: Solve for x
    x = 58,438,539.69/8,664.40
  6. Step 6: Final answer
    x = 6,744.67

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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.