Home / 15,889.96-21,937.80-12,346.48

Finding the Fourth Proportional to 15,889.96, 21,937.80 and 12,346.48

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Solution

The fourth proportional to 15,889.96, 21,937.80 and 12,346.48 is: 17,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.96 : 21,937.80 = 12,346.48 : x
  2. Step 2: Convert to fraction form
    15,889.96/21,937.80 = 12,346.48/x
  3. Step 3: Cross multiply
    15,889.96x = 21,937.80 × 12,346.48
  4. Step 4: Simplify right side
    15,889.96x = 270,854,608.94
  5. Step 5: Solve for x
    x = 270,854,608.94/15,889.96
  6. Step 6: Final answer
    x = 17,045.64

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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.