Home / 15,643.34-21,590.82-12,233.60

Finding the Fourth Proportional to 15,643.34, 21,590.82 and 12,233.60

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Solution

The fourth proportional to 15,643.34, 21,590.82 and 12,233.60 is: 16,884.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.34 : 21,590.82 = 12,233.60 : x
  2. Step 2: Convert to fraction form
    15,643.34/21,590.82 = 12,233.60/x
  3. Step 3: Cross multiply
    15,643.34x = 21,590.82 × 12,233.60
  4. Step 4: Simplify right side
    15,643.34x = 264,133,382.69
  5. Step 5: Solve for x
    x = 264,133,382.69/15,643.34
  6. Step 6: Final answer
    x = 16,884.72

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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.