Home / 7,428.56-10,251.54-4,071.32

Finding the Fourth Proportional to 7,428.56, 10,251.54 and 4,071.32

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Solution

The fourth proportional to 7,428.56, 10,251.54 and 4,071.32 is: 5,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.56 : 10,251.54 = 4,071.32 : x
  2. Step 2: Convert to fraction form
    7,428.56/10,251.54 = 4,071.32/x
  3. Step 3: Cross multiply
    7,428.56x = 10,251.54 × 4,071.32
  4. Step 4: Simplify right side
    7,428.56x = 41,737,299.83
  5. Step 5: Solve for x
    x = 41,737,299.83/7,428.56
  6. Step 6: Final answer
    x = 5,618.49

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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.