Home / 8,527.24-12,781.98-3,909.16

Finding the Fourth Proportional to 8,527.24, 12,781.98 and 3,909.16

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Solution

The fourth proportional to 8,527.24, 12,781.98 and 3,909.16 is: 5,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527.24 : 12,781.98 = 3,909.16 : x
  2. Step 2: Convert to fraction form
    8,527.24/12,781.98 = 3,909.16/x
  3. Step 3: Cross multiply
    8,527.24x = 12,781.98 × 3,909.16
  4. Step 4: Simplify right side
    8,527.24x = 49,966,804.94
  5. Step 5: Solve for x
    x = 49,966,804.94/8,527.24
  6. Step 6: Final answer
    x = 5,859.67

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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.