Home / 16,781.70-23,156.94-9,706.74

Finding the Fourth Proportional to 16,781.70, 23,156.94 and 9,706.74

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Solution

The fourth proportional to 16,781.70, 23,156.94 and 9,706.74 is: 13,394.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.70 : 23,156.94 = 9,706.74 : x
  2. Step 2: Convert to fraction form
    16,781.70/23,156.94 = 9,706.74/x
  3. Step 3: Cross multiply
    16,781.70x = 23,156.94 × 9,706.74
  4. Step 4: Simplify right side
    16,781.70x = 224,778,395.78
  5. Step 5: Solve for x
    x = 224,778,395.78/16,781.70
  6. Step 6: Final answer
    x = 13,394.26

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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.