Home / 7,617.60-11,428.56-4,618.98

Finding the Fourth Proportional to 7,617.60, 11,428.56 and 4,618.98

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Solution

The fourth proportional to 7,617.60, 11,428.56 and 4,618.98 is: 6,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.60 : 11,428.56 = 4,618.98 : x
  2. Step 2: Convert to fraction form
    7,617.60/11,428.56 = 4,618.98/x
  3. Step 3: Cross multiply
    7,617.60x = 11,428.56 × 4,618.98
  4. Step 4: Simplify right side
    7,617.60x = 52,788,290.07
  5. Step 5: Solve for x
    x = 52,788,290.07/7,617.60
  6. Step 6: Final answer
    x = 6,929.78

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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.