Home / 12,612.48-17,400.60-7,305.36

Finding the Fourth Proportional to 12,612.48, 17,400.60 and 7,305.36

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Solution

The fourth proportional to 12,612.48, 17,400.60 and 7,305.36 is: 10,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.48 : 17,400.60 = 7,305.36 : x
  2. Step 2: Convert to fraction form
    12,612.48/17,400.60 = 7,305.36/x
  3. Step 3: Cross multiply
    12,612.48x = 17,400.60 × 7,305.36
  4. Step 4: Simplify right side
    12,612.48x = 127,117,647.22
  5. Step 5: Solve for x
    x = 127,117,647.22/12,612.48
  6. Step 6: Final answer
    x = 10,078.72

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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.