Home / 12,647.36-17,456.48-7,683.52

Finding the Fourth Proportional to 12,647.36, 17,456.48 and 7,683.52

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Solution

The fourth proportional to 12,647.36, 17,456.48 and 7,683.52 is: 10,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.36 : 17,456.48 = 7,683.52 : x
  2. Step 2: Convert to fraction form
    12,647.36/17,456.48 = 7,683.52/x
  3. Step 3: Cross multiply
    12,647.36x = 17,456.48 × 7,683.52
  4. Step 4: Simplify right side
    12,647.36x = 134,127,213.21
  5. Step 5: Solve for x
    x = 134,127,213.21/12,647.36
  6. Step 6: Final answer
    x = 10,605.16

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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.