Home / 16,661.93-23,000.87-12,683.21

Finding the Fourth Proportional to 16,661.93, 23,000.87 and 12,683.21

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Solution

The fourth proportional to 16,661.93, 23,000.87 and 12,683.21 is: 17,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.93 : 23,000.87 = 12,683.21 : x
  2. Step 2: Convert to fraction form
    16,661.93/23,000.87 = 12,683.21/x
  3. Step 3: Cross multiply
    16,661.93x = 23,000.87 × 12,683.21
  4. Step 4: Simplify right side
    16,661.93x = 291,724,864.39
  5. Step 5: Solve for x
    x = 291,724,864.39/16,661.93
  6. Step 6: Final answer
    x = 17,508.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.