Home / 15,851.83-21,875.48-9,137.41

Finding the Fourth Proportional to 15,851.83, 21,875.48 and 9,137.41

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Solution

The fourth proportional to 15,851.83, 21,875.48 and 9,137.41 is: 12,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.83 : 21,875.48 = 9,137.41 : x
  2. Step 2: Convert to fraction form
    15,851.83/21,875.48 = 9,137.41/x
  3. Step 3: Cross multiply
    15,851.83x = 21,875.48 × 9,137.41
  4. Step 4: Simplify right side
    15,851.83x = 199,885,120.33
  5. Step 5: Solve for x
    x = 199,885,120.33/15,851.83
  6. Step 6: Final answer
    x = 12,609.60

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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.