Home / 14,389.92-19,839.60-9,663.84

Finding the Fourth Proportional to 14,389.92, 19,839.60 and 9,663.84

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Solution

The fourth proportional to 14,389.92, 19,839.60 and 9,663.84 is: 13,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.92 : 19,839.60 = 9,663.84 : x
  2. Step 2: Convert to fraction form
    14,389.92/19,839.60 = 9,663.84/x
  3. Step 3: Cross multiply
    14,389.92x = 19,839.60 × 9,663.84
  4. Step 4: Simplify right side
    14,389.92x = 191,726,720.06
  5. Step 5: Solve for x
    x = 191,726,720.06/14,389.92
  6. Step 6: Final answer
    x = 13,323.68

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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.