Home / 13,137.09-19,645.77-9,807.68

Finding the Fourth Proportional to 13,137.09, 19,645.77 and 9,807.68

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Solution

The fourth proportional to 13,137.09, 19,645.77 and 9,807.68 is: 14,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137.09 : 19,645.77 = 9,807.68 : x
  2. Step 2: Convert to fraction form
    13,137.09/19,645.77 = 9,807.68/x
  3. Step 3: Cross multiply
    13,137.09x = 19,645.77 × 9,807.68
  4. Step 4: Simplify right side
    13,137.09x = 192,679,511.41
  5. Step 5: Solve for x
    x = 192,679,511.41/13,137.09
  6. Step 6: Final answer
    x = 14,666.84

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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.