Home / 13,214.61-19,783.03-8,821.17

Finding the Fourth Proportional to 13,214.61, 19,783.03 and 8,821.17

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Solution

The fourth proportional to 13,214.61, 19,783.03 and 8,821.17 is: 13,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.61 : 19,783.03 = 8,821.17 : x
  2. Step 2: Convert to fraction form
    13,214.61/19,783.03 = 8,821.17/x
  3. Step 3: Cross multiply
    13,214.61x = 19,783.03 × 8,821.17
  4. Step 4: Simplify right side
    13,214.61x = 174,509,470.75
  5. Step 5: Solve for x
    x = 174,509,470.75/13,214.61
  6. Step 6: Final answer
    x = 13,205.80

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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.