Home / 7,914.60-10,922.76-4,378.92

Finding the Fourth Proportional to 7,914.60, 10,922.76 and 4,378.92

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Solution

The fourth proportional to 7,914.60, 10,922.76 and 4,378.92 is: 6,043.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.60 : 10,922.76 = 4,378.92 : x
  2. Step 2: Convert to fraction form
    7,914.60/10,922.76 = 4,378.92/x
  3. Step 3: Cross multiply
    7,914.60x = 10,922.76 × 4,378.92
  4. Step 4: Simplify right side
    7,914.60x = 47,829,892.22
  5. Step 5: Solve for x
    x = 47,829,892.22/7,914.60
  6. Step 6: Final answer
    x = 6,043.25

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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.