Home / 15,732.90-21,701.79-12,370.32

Finding the Fourth Proportional to 15,732.90, 21,701.79 and 12,370.32

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Solution

The fourth proportional to 15,732.90, 21,701.79 and 12,370.32 is: 17,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,732.90 : 21,701.79 = 12,370.32 : x
  2. Step 2: Convert to fraction form
    15,732.90/21,701.79 = 12,370.32/x
  3. Step 3: Cross multiply
    15,732.90x = 21,701.79 × 12,370.32
  4. Step 4: Simplify right side
    15,732.90x = 268,458,086.87
  5. Step 5: Solve for x
    x = 268,458,086.87/15,732.90
  6. Step 6: Final answer
    x = 17,063.48

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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.