Home / 12,356.44-17,040.36-7,875.52

Finding the Fourth Proportional to 12,356.44, 17,040.36 and 7,875.52

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Solution

The fourth proportional to 12,356.44, 17,040.36 and 7,875.52 is: 10,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.44 : 17,040.36 = 7,875.52 : x
  2. Step 2: Convert to fraction form
    12,356.44/17,040.36 = 7,875.52/x
  3. Step 3: Cross multiply
    12,356.44x = 17,040.36 × 7,875.52
  4. Step 4: Simplify right side
    12,356.44x = 134,201,695.99
  5. Step 5: Solve for x
    x = 134,201,695.99/12,356.44
  6. Step 6: Final answer
    x = 10,860.87

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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.