Home / 7,931.58-11,894.97-3,313.50

Finding the Fourth Proportional to 7,931.58, 11,894.97 and 3,313.50

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Solution

The fourth proportional to 7,931.58, 11,894.97 and 3,313.50 is: 4,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.58 : 11,894.97 = 3,313.50 : x
  2. Step 2: Convert to fraction form
    7,931.58/11,894.97 = 3,313.50/x
  3. Step 3: Cross multiply
    7,931.58x = 11,894.97 × 3,313.50
  4. Step 4: Simplify right side
    7,931.58x = 39,413,983.10
  5. Step 5: Solve for x
    x = 39,413,983.10/7,931.58
  6. Step 6: Final answer
    x = 4,969.25

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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.