Home / 10,345.67-15,526.30-7,579.43

Finding the Fourth Proportional to 10,345.67, 15,526.30 and 7,579.43

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Solution

The fourth proportional to 10,345.67, 15,526.30 and 7,579.43 is: 11,374.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.67 : 15,526.30 = 7,579.43 : x
  2. Step 2: Convert to fraction form
    10,345.67/15,526.30 = 7,579.43/x
  3. Step 3: Cross multiply
    10,345.67x = 15,526.30 × 7,579.43
  4. Step 4: Simplify right side
    10,345.67x = 117,680,504.01
  5. Step 5: Solve for x
    x = 117,680,504.01/10,345.67
  6. Step 6: Final answer
    x = 11,374.86

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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.