Home / 12,615.04-18,917.54-4,293.36

Finding the Fourth Proportional to 12,615.04, 18,917.54 and 4,293.36

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Solution

The fourth proportional to 12,615.04, 18,917.54 and 4,293.36 is: 6,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.04 : 18,917.54 = 4,293.36 : x
  2. Step 2: Convert to fraction form
    12,615.04/18,917.54 = 4,293.36/x
  3. Step 3: Cross multiply
    12,615.04x = 18,917.54 × 4,293.36
  4. Step 4: Simplify right side
    12,615.04x = 81,219,809.53
  5. Step 5: Solve for x
    x = 81,219,809.53/12,615.04
  6. Step 6: Final answer
    x = 6,438.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.