Home / 10,482.21-15,718.29-4,930.87

Finding the Fourth Proportional to 10,482.21, 15,718.29 and 4,930.87

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Solution

The fourth proportional to 10,482.21, 15,718.29 and 4,930.87 is: 7,393.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,482.21 : 15,718.29 = 4,930.87 : x
  2. Step 2: Convert to fraction form
    10,482.21/15,718.29 = 4,930.87/x
  3. Step 3: Cross multiply
    10,482.21x = 15,718.29 × 4,930.87
  4. Step 4: Simplify right side
    10,482.21x = 77,504,844.61
  5. Step 5: Solve for x
    x = 77,504,844.61/10,482.21
  6. Step 6: Final answer
    x = 7,393.94

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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.