Home / 10,300.20-15,450.30-2,509.01

Finding the Fourth Proportional to 10,300.20, 15,450.30 and 2,509.01

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Solution

The fourth proportional to 10,300.20, 15,450.30 and 2,509.01 is: 3,763.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,300.20 : 15,450.30 = 2,509.01 : x
  2. Step 2: Convert to fraction form
    10,300.20/15,450.30 = 2,509.01/x
  3. Step 3: Cross multiply
    10,300.20x = 15,450.30 × 2,509.01
  4. Step 4: Simplify right side
    10,300.20x = 38,764,957.20
  5. Step 5: Solve for x
    x = 38,764,957.20/10,300.20
  6. Step 6: Final answer
    x = 3,763.52

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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.