Home / 11,526.68-15,905.50-6,490.78

Finding the Fourth Proportional to 11,526.68, 15,905.50 and 6,490.78

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Solution

The fourth proportional to 11,526.68, 15,905.50 and 6,490.78 is: 8,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,526.68 : 15,905.50 = 6,490.78 : x
  2. Step 2: Convert to fraction form
    11,526.68/15,905.50 = 6,490.78/x
  3. Step 3: Cross multiply
    11,526.68x = 15,905.50 × 6,490.78
  4. Step 4: Simplify right side
    11,526.68x = 103,239,045.30
  5. Step 5: Solve for x
    x = 103,239,045.30/11,526.68
  6. Step 6: Final answer
    x = 8,956.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.