Home / 15,683.58-21,642.66-8,610.12

Finding the Fourth Proportional to 15,683.58, 21,642.66 and 8,610.12

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Solution

The fourth proportional to 15,683.58, 21,642.66 and 8,610.12 is: 11,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.58 : 21,642.66 = 8,610.12 : x
  2. Step 2: Convert to fraction form
    15,683.58/21,642.66 = 8,610.12/x
  3. Step 3: Cross multiply
    15,683.58x = 21,642.66 × 8,610.12
  4. Step 4: Simplify right side
    15,683.58x = 186,345,899.72
  5. Step 5: Solve for x
    x = 186,345,899.72/15,683.58
  6. Step 6: Final answer
    x = 11,881.59

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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.