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Finding the Fourth Proportional to 13,762.30, 18,999.86 and 9,060.25

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Solution

The fourth proportional to 13,762.30, 18,999.86 and 9,060.25 is: 12,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.30 : 18,999.86 = 9,060.25 : x
  2. Step 2: Convert to fraction form
    13,762.30/18,999.86 = 9,060.25/x
  3. Step 3: Cross multiply
    13,762.30x = 18,999.86 × 9,060.25
  4. Step 4: Simplify right side
    13,762.30x = 172,143,436.26
  5. Step 5: Solve for x
    x = 172,143,436.26/13,762.30
  6. Step 6: Final answer
    x = 12,508.33

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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.