Home / 13,223.44-18,246.63-7,917.13

Finding the Fourth Proportional to 13,223.44, 18,246.63 and 7,917.13

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Solution

The fourth proportional to 13,223.44, 18,246.63 and 7,917.13 is: 10,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.44 : 18,246.63 = 7,917.13 : x
  2. Step 2: Convert to fraction form
    13,223.44/18,246.63 = 7,917.13/x
  3. Step 3: Cross multiply
    13,223.44x = 18,246.63 × 7,917.13
  4. Step 4: Simplify right side
    13,223.44x = 144,460,941.77
  5. Step 5: Solve for x
    x = 144,460,941.77/13,223.44
  6. Step 6: Final answer
    x = 10,924.61

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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.