Home / 10,407.09-15,608.60-8,663.30

Finding the Fourth Proportional to 10,407.09, 15,608.60 and 8,663.30

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Solution

The fourth proportional to 10,407.09, 15,608.60 and 8,663.30 is: 12,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.09 : 15,608.60 = 8,663.30 : x
  2. Step 2: Convert to fraction form
    10,407.09/15,608.60 = 8,663.30/x
  3. Step 3: Cross multiply
    10,407.09x = 15,608.60 × 8,663.30
  4. Step 4: Simplify right side
    10,407.09x = 135,221,984.38
  5. Step 5: Solve for x
    x = 135,221,984.38/10,407.09
  6. Step 6: Final answer
    x = 12,993.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.