Home / 10,346.91-15,490.44-9,278.62

Finding the Fourth Proportional to 10,346.91, 15,490.44 and 9,278.62

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Solution

The fourth proportional to 10,346.91, 15,490.44 and 9,278.62 is: 13,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,346.91 : 15,490.44 = 9,278.62 : x
  2. Step 2: Convert to fraction form
    10,346.91/15,490.44 = 9,278.62/x
  3. Step 3: Cross multiply
    10,346.91x = 15,490.44 × 9,278.62
  4. Step 4: Simplify right side
    10,346.91x = 143,729,782.55
  5. Step 5: Solve for x
    x = 143,729,782.55/10,346.91
  6. Step 6: Final answer
    x = 13,891.09

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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.