Home / 16,962.86-23,408.76-9,890.64

Finding the Fourth Proportional to 16,962.86, 23,408.76 and 9,890.64

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Solution

The fourth proportional to 16,962.86, 23,408.76 and 9,890.64 is: 13,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,962.86 : 23,408.76 = 9,890.64 : x
  2. Step 2: Convert to fraction form
    16,962.86/23,408.76 = 9,890.64/x
  3. Step 3: Cross multiply
    16,962.86x = 23,408.76 × 9,890.64
  4. Step 4: Simplify right side
    16,962.86x = 231,527,712.13
  5. Step 5: Solve for x
    x = 231,527,712.13/16,962.86
  6. Step 6: Final answer
    x = 13,649.10

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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.