Home / 15,686.33-21,647.52-8,516.53

Finding the Fourth Proportional to 15,686.33, 21,647.52 and 8,516.53

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Solution

The fourth proportional to 15,686.33, 21,647.52 and 8,516.53 is: 11,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686.33 : 21,647.52 = 8,516.53 : x
  2. Step 2: Convert to fraction form
    15,686.33/21,647.52 = 8,516.53/x
  3. Step 3: Cross multiply
    15,686.33x = 21,647.52 × 8,516.53
  4. Step 4: Simplify right side
    15,686.33x = 184,361,699.39
  5. Step 5: Solve for x
    x = 184,361,699.39/15,686.33
  6. Step 6: Final answer
    x = 11,753.01

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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.