Home / 10,260.20-15,389.66-3,686.20

Finding the Fourth Proportional to 10,260.20, 15,389.66 and 3,686.20

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Solution

The fourth proportional to 10,260.20, 15,389.66 and 3,686.20 is: 5,529.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.20 : 15,389.66 = 3,686.20 : x
  2. Step 2: Convert to fraction form
    10,260.20/15,389.66 = 3,686.20/x
  3. Step 3: Cross multiply
    10,260.20x = 15,389.66 × 3,686.20
  4. Step 4: Simplify right side
    10,260.20x = 56,729,364.69
  5. Step 5: Solve for x
    x = 56,729,364.69/10,260.20
  6. Step 6: Final answer
    x = 5,529.07

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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.