Home / 7,686.23-11,529.32-2,421.68

Finding the Fourth Proportional to 7,686.23, 11,529.32 and 2,421.68

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Solution

The fourth proportional to 7,686.23, 11,529.32 and 2,421.68 is: 3,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.23 : 11,529.32 = 2,421.68 : x
  2. Step 2: Convert to fraction form
    7,686.23/11,529.32 = 2,421.68/x
  3. Step 3: Cross multiply
    7,686.23x = 11,529.32 × 2,421.68
  4. Step 4: Simplify right side
    7,686.23x = 27,920,253.90
  5. Step 5: Solve for x
    x = 27,920,253.90/7,686.23
  6. Step 6: Final answer
    x = 3,632.51

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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.