Home / 10,345.56-15,520.79-2,950.12

Finding the Fourth Proportional to 10,345.56, 15,520.79 and 2,950.12

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Solution

The fourth proportional to 10,345.56, 15,520.79 and 2,950.12 is: 4,425.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.56 : 15,520.79 = 2,950.12 : x
  2. Step 2: Convert to fraction form
    10,345.56/15,520.79 = 2,950.12/x
  3. Step 3: Cross multiply
    10,345.56x = 15,520.79 × 2,950.12
  4. Step 4: Simplify right side
    10,345.56x = 45,788,192.99
  5. Step 5: Solve for x
    x = 45,788,192.99/10,345.56
  6. Step 6: Final answer
    x = 4,425.88

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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.