Home / 12,427.40-17,149.68-6,762.32

Finding the Fourth Proportional to 12,427.40, 17,149.68 and 6,762.32

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Solution

The fourth proportional to 12,427.40, 17,149.68 and 6,762.32 is: 9,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.40 : 17,149.68 = 6,762.32 : x
  2. Step 2: Convert to fraction form
    12,427.40/17,149.68 = 6,762.32/x
  3. Step 3: Cross multiply
    12,427.40x = 17,149.68 × 6,762.32
  4. Step 4: Simplify right side
    12,427.40x = 115,971,624.06
  5. Step 5: Solve for x
    x = 115,971,624.06/12,427.40
  6. Step 6: Final answer
    x = 9,331.93

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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.