Home / 10,260.12-15,390.92-3,686.35

Finding the Fourth Proportional to 10,260.12, 15,390.92 and 3,686.35

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Solution

The fourth proportional to 10,260.12, 15,390.92 and 3,686.35 is: 5,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.12 : 15,390.92 = 3,686.35 : x
  2. Step 2: Convert to fraction form
    10,260.12/15,390.92 = 3,686.35/x
  3. Step 3: Cross multiply
    10,260.12x = 15,390.92 × 3,686.35
  4. Step 4: Simplify right side
    10,260.12x = 56,736,317.94
  5. Step 5: Solve for x
    x = 56,736,317.94/10,260.12
  6. Step 6: Final answer
    x = 5,529.79

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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.