Home / 13,225.19-18,247.65-11,999.93

Finding the Fourth Proportional to 13,225.19, 18,247.65 and 11,999.93

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Solution

The fourth proportional to 13,225.19, 18,247.65 and 11,999.93 is: 16,557.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.19 : 18,247.65 = 11,999.93 : x
  2. Step 2: Convert to fraction form
    13,225.19/18,247.65 = 11,999.93/x
  3. Step 3: Cross multiply
    13,225.19x = 18,247.65 × 11,999.93
  4. Step 4: Simplify right side
    13,225.19x = 218,970,522.66
  5. Step 5: Solve for x
    x = 218,970,522.66/13,225.19
  6. Step 6: Final answer
    x = 16,557.08

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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.