Home / 14,917.40-20,586.15-8,203.07

Finding the Fourth Proportional to 14,917.40, 20,586.15 and 8,203.07

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Solution

The fourth proportional to 14,917.40, 20,586.15 and 8,203.07 is: 11,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,917.40 : 20,586.15 = 8,203.07 : x
  2. Step 2: Convert to fraction form
    14,917.40/20,586.15 = 8,203.07/x
  3. Step 3: Cross multiply
    14,917.40x = 20,586.15 × 8,203.07
  4. Step 4: Simplify right side
    14,917.40x = 168,869,629.48
  5. Step 5: Solve for x
    x = 168,869,629.48/14,917.40
  6. Step 6: Final answer
    x = 11,320.31

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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.