Home / 12,510.48-18,765.36-3,150.48

Finding the Fourth Proportional to 12,510.48, 18,765.36 and 3,150.48

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Solution

The fourth proportional to 12,510.48, 18,765.36 and 3,150.48 is: 4,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.48 : 18,765.36 = 3,150.48 : x
  2. Step 2: Convert to fraction form
    12,510.48/18,765.36 = 3,150.48/x
  3. Step 3: Cross multiply
    12,510.48x = 18,765.36 × 3,150.48
  4. Step 4: Simplify right side
    12,510.48x = 59,119,891.37
  5. Step 5: Solve for x
    x = 59,119,891.37/12,510.48
  6. Step 6: Final answer
    x = 4,725.63

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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.