Home / 12,435.15-17,160.48-6,769.81

Finding the Fourth Proportional to 12,435.15, 17,160.48 and 6,769.81

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Solution

The fourth proportional to 12,435.15, 17,160.48 and 6,769.81 is: 9,342.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.15 : 17,160.48 = 6,769.81 : x
  2. Step 2: Convert to fraction form
    12,435.15/17,160.48 = 6,769.81/x
  3. Step 3: Cross multiply
    12,435.15x = 17,160.48 × 6,769.81
  4. Step 4: Simplify right side
    12,435.15x = 116,173,146.21
  5. Step 5: Solve for x
    x = 116,173,146.21/12,435.15
  6. Step 6: Final answer
    x = 9,342.32

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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.