Home / 8,474.02-12,683.42-7,665.70

Finding the Fourth Proportional to 8,474.02, 12,683.42 and 7,665.70

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Solution

The fourth proportional to 8,474.02, 12,683.42 and 7,665.70 is: 11,473.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.02 : 12,683.42 = 7,665.70 : x
  2. Step 2: Convert to fraction form
    8,474.02/12,683.42 = 7,665.70/x
  3. Step 3: Cross multiply
    8,474.02x = 12,683.42 × 7,665.70
  4. Step 4: Simplify right side
    8,474.02x = 97,227,292.69
  5. Step 5: Solve for x
    x = 97,227,292.69/8,474.02
  6. Step 6: Final answer
    x = 11,473.57

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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.