Home / 7,914.04-10,920.60-4,376.76

Finding the Fourth Proportional to 7,914.04, 10,920.60 and 4,376.76

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Solution

The fourth proportional to 7,914.04, 10,920.60 and 4,376.76 is: 6,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.04 : 10,920.60 = 4,376.76 : x
  2. Step 2: Convert to fraction form
    7,914.04/10,920.60 = 4,376.76/x
  3. Step 3: Cross multiply
    7,914.04x = 10,920.60 × 4,376.76
  4. Step 4: Simplify right side
    7,914.04x = 47,796,845.26
  5. Step 5: Solve for x
    x = 47,796,845.26/7,914.04
  6. Step 6: Final answer
    x = 6,039.50

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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.