Home / 12,470.43-17,209.61-6,805.49

Finding the Fourth Proportional to 12,470.43, 17,209.61 and 6,805.49

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Solution

The fourth proportional to 12,470.43, 17,209.61 and 6,805.49 is: 9,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.43 : 17,209.61 = 6,805.49 : x
  2. Step 2: Convert to fraction form
    12,470.43/17,209.61 = 6,805.49/x
  3. Step 3: Cross multiply
    12,470.43x = 17,209.61 × 6,805.49
  4. Step 4: Simplify right side
    12,470.43x = 117,119,828.76
  5. Step 5: Solve for x
    x = 117,119,828.76/12,470.43
  6. Step 6: Final answer
    x = 9,391.80

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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.