Home / 10,285.12-15,424.48-2,889.12

Finding the Fourth Proportional to 10,285.12, 15,424.48 and 2,889.12

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Solution

The fourth proportional to 10,285.12, 15,424.48 and 2,889.12 is: 4,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.12 : 15,424.48 = 2,889.12 : x
  2. Step 2: Convert to fraction form
    10,285.12/15,424.48 = 2,889.12/x
  3. Step 3: Cross multiply
    10,285.12x = 15,424.48 × 2,889.12
  4. Step 4: Simplify right side
    10,285.12x = 44,563,173.66
  5. Step 5: Solve for x
    x = 44,563,173.66/10,285.12
  6. Step 6: Final answer
    x = 4,332.78

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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.