Home / 8,487.81-12,701.61-6,261.37

Finding the Fourth Proportional to 8,487.81, 12,701.61 and 6,261.37

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Solution

The fourth proportional to 8,487.81, 12,701.61 and 6,261.37 is: 9,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.81 : 12,701.61 = 6,261.37 : x
  2. Step 2: Convert to fraction form
    8,487.81/12,701.61 = 6,261.37/x
  3. Step 3: Cross multiply
    8,487.81x = 12,701.61 × 6,261.37
  4. Step 4: Simplify right side
    8,487.81x = 79,529,479.81
  5. Step 5: Solve for x
    x = 79,529,479.81/8,487.81
  6. Step 6: Final answer
    x = 9,369.85

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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.