Home / 15,683.58-21,643.32-8,610

Finding the Fourth Proportional to 15,683.58, 21,643.32 and 8,610

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Solution

The fourth proportional to 15,683.58, 21,643.32 and 8,610 is: 11,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.58 : 21,643.32 = 8,610 : x
  2. Step 2: Convert to fraction form
    15,683.58/21,643.32 = 8,610/x
  3. Step 3: Cross multiply
    15,683.58x = 21,643.32 × 8,610
  4. Step 4: Simplify right side
    15,683.58x = 186,348,985.20
  5. Step 5: Solve for x
    x = 186,348,985.20/15,683.58
  6. Step 6: Final answer
    x = 11,881.79

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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.