Home / 13,313.40-19,943.70-11,671.80

Finding the Fourth Proportional to 13,313.40, 19,943.70 and 11,671.80

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Solution

The fourth proportional to 13,313.40, 19,943.70 and 11,671.80 is: 17,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.40 : 19,943.70 = 11,671.80 : x
  2. Step 2: Convert to fraction form
    13,313.40/19,943.70 = 11,671.80/x
  3. Step 3: Cross multiply
    13,313.40x = 19,943.70 × 11,671.80
  4. Step 4: Simplify right side
    13,313.40x = 232,778,877.66
  5. Step 5: Solve for x
    x = 232,778,877.66/13,313.40
  6. Step 6: Final answer
    x = 17,484.56

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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.