Home / 26,128.49-39,192.35-6,407.20

Finding the Fourth Proportional to 26,128.49, 39,192.35 and 6,407.20

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Solution

The fourth proportional to 26,128.49, 39,192.35 and 6,407.20 is: 9,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128.49 : 39,192.35 = 6,407.20 : x
  2. Step 2: Convert to fraction form
    26,128.49/39,192.35 = 6,407.20/x
  3. Step 3: Cross multiply
    26,128.49x = 39,192.35 × 6,407.20
  4. Step 4: Simplify right side
    26,128.49x = 251,113,028.96
  5. Step 5: Solve for x
    x = 251,113,028.96/26,128.49
  6. Step 6: Final answer
    x = 9,610.70

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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.