Home / 12,553.28-17,316.32-7,829.36

Finding the Fourth Proportional to 12,553.28, 17,316.32 and 7,829.36

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Solution

The fourth proportional to 12,553.28, 17,316.32 and 7,829.36 is: 10,800.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.28 : 17,316.32 = 7,829.36 : x
  2. Step 2: Convert to fraction form
    12,553.28/17,316.32 = 7,829.36/x
  3. Step 3: Cross multiply
    12,553.28x = 17,316.32 × 7,829.36
  4. Step 4: Simplify right side
    12,553.28x = 135,575,703.16
  5. Step 5: Solve for x
    x = 135,575,703.16/12,553.28
  6. Step 6: Final answer
    x = 10,800.02

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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.