Home / 10,579.21-15,837.67-7,818.20

Finding the Fourth Proportional to 10,579.21, 15,837.67 and 7,818.20

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Solution

The fourth proportional to 10,579.21, 15,837.67 and 7,818.20 is: 11,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.21 : 15,837.67 = 7,818.20 : x
  2. Step 2: Convert to fraction form
    10,579.21/15,837.67 = 7,818.20/x
  3. Step 3: Cross multiply
    10,579.21x = 15,837.67 × 7,818.20
  4. Step 4: Simplify right side
    10,579.21x = 123,822,071.59
  5. Step 5: Solve for x
    x = 123,822,071.59/10,579.21
  6. Step 6: Final answer
    x = 11,704.28

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1.5x scale

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.