Home / 15,958.62-22,001.22-12,969.72

Finding the Fourth Proportional to 15,958.62, 22,001.22 and 12,969.72

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Solution

The fourth proportional to 15,958.62, 22,001.22 and 12,969.72 is: 17,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.62 : 22,001.22 = 12,969.72 : x
  2. Step 2: Convert to fraction form
    15,958.62/22,001.22 = 12,969.72/x
  3. Step 3: Cross multiply
    15,958.62x = 22,001.22 × 12,969.72
  4. Step 4: Simplify right side
    15,958.62x = 285,349,663.06
  5. Step 5: Solve for x
    x = 285,349,663.06/15,958.62
  6. Step 6: Final answer
    x = 17,880.60

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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.