Home / 8,935.76-12,330.96-5,577.50

Finding the Fourth Proportional to 8,935.76, 12,330.96 and 5,577.50

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Solution

The fourth proportional to 8,935.76, 12,330.96 and 5,577.50 is: 7,696.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.76 : 12,330.96 = 5,577.50 : x
  2. Step 2: Convert to fraction form
    8,935.76/12,330.96 = 5,577.50/x
  3. Step 3: Cross multiply
    8,935.76x = 12,330.96 × 5,577.50
  4. Step 4: Simplify right side
    8,935.76x = 68,775,929.40
  5. Step 5: Solve for x
    x = 68,775,929.40/8,935.76
  6. Step 6: Final answer
    x = 7,696.71

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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.