Home / 11,848.48-16,351.50-7,862.80

Finding the Fourth Proportional to 11,848.48, 16,351.50 and 7,862.80

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Solution

The fourth proportional to 11,848.48, 16,351.50 and 7,862.80 is: 10,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,848.48 : 16,351.50 = 7,862.80 : x
  2. Step 2: Convert to fraction form
    11,848.48/16,351.50 = 7,862.80/x
  3. Step 3: Cross multiply
    11,848.48x = 16,351.50 × 7,862.80
  4. Step 4: Simplify right side
    11,848.48x = 128,568,574.20
  5. Step 5: Solve for x
    x = 128,568,574.20/11,848.48
  6. Step 6: Final answer
    x = 10,851.06

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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.