Home / 8,940.58-13,417.70-6,440.56

Finding the Fourth Proportional to 8,940.58, 13,417.70 and 6,440.56

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Solution

The fourth proportional to 8,940.58, 13,417.70 and 6,440.56 is: 9,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.58 : 13,417.70 = 6,440.56 : x
  2. Step 2: Convert to fraction form
    8,940.58/13,417.70 = 6,440.56/x
  3. Step 3: Cross multiply
    8,940.58x = 13,417.70 × 6,440.56
  4. Step 4: Simplify right side
    8,940.58x = 86,417,436.16
  5. Step 5: Solve for x
    x = 86,417,436.16/8,940.58
  6. Step 6: Final answer
    x = 9,665.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.