Home / 8,929.56-12,322.50-5,570.64

Finding the Fourth Proportional to 8,929.56, 12,322.50 and 5,570.64

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Solution

The fourth proportional to 8,929.56, 12,322.50 and 5,570.64 is: 7,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.56 : 12,322.50 = 5,570.64 : x
  2. Step 2: Convert to fraction form
    8,929.56/12,322.50 = 5,570.64/x
  3. Step 3: Cross multiply
    8,929.56x = 12,322.50 × 5,570.64
  4. Step 4: Simplify right side
    8,929.56x = 68,644,211.40
  5. Step 5: Solve for x
    x = 68,644,211.40/8,929.56
  6. Step 6: Final answer
    x = 7,687.30

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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.