Home / 13,321.29-19,962.87-9,783.51

Finding the Fourth Proportional to 13,321.29, 19,962.87 and 9,783.51

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Solution

The fourth proportional to 13,321.29, 19,962.87 and 9,783.51 is: 14,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.29 : 19,962.87 = 9,783.51 : x
  2. Step 2: Convert to fraction form
    13,321.29/19,962.87 = 9,783.51/x
  3. Step 3: Cross multiply
    13,321.29x = 19,962.87 × 9,783.51
  4. Step 4: Simplify right side
    13,321.29x = 195,306,938.27
  5. Step 5: Solve for x
    x = 195,306,938.27/13,321.29
  6. Step 6: Final answer
    x = 14,661.26

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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.