Home / 13,280.44-19,999.72-11,569.72

Finding the Fourth Proportional to 13,280.44, 19,999.72 and 11,569.72

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Solution

The fourth proportional to 13,280.44, 19,999.72 and 11,569.72 is: 17,423.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.44 : 19,999.72 = 11,569.72 : x
  2. Step 2: Convert to fraction form
    13,280.44/19,999.72 = 11,569.72/x
  3. Step 3: Cross multiply
    13,280.44x = 19,999.72 × 11,569.72
  4. Step 4: Simplify right side
    13,280.44x = 231,391,160.48
  5. Step 5: Solve for x
    x = 231,391,160.48/13,280.44
  6. Step 6: Final answer
    x = 17,423.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.