Home / 7,914.39-10,921.28-4,557.08

Finding the Fourth Proportional to 7,914.39, 10,921.28 and 4,557.08

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Solution

The fourth proportional to 7,914.39, 10,921.28 and 4,557.08 is: 6,288.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.39 : 10,921.28 = 4,557.08 : x
  2. Step 2: Convert to fraction form
    7,914.39/10,921.28 = 4,557.08/x
  3. Step 3: Cross multiply
    7,914.39x = 10,921.28 × 4,557.08
  4. Step 4: Simplify right side
    7,914.39x = 49,769,069.27
  5. Step 5: Solve for x
    x = 49,769,069.27/7,914.39
  6. Step 6: Final answer
    x = 6,288.43

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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.