Home / 15,484.49-21,370.41-9,196.86

Finding the Fourth Proportional to 15,484.49, 21,370.41 and 9,196.86

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Solution

The fourth proportional to 15,484.49, 21,370.41 and 9,196.86 is: 12,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.49 : 21,370.41 = 9,196.86 : x
  2. Step 2: Convert to fraction form
    15,484.49/21,370.41 = 9,196.86/x
  3. Step 3: Cross multiply
    15,484.49x = 21,370.41 × 9,196.86
  4. Step 4: Simplify right side
    15,484.49x = 196,540,668.91
  5. Step 5: Solve for x
    x = 196,540,668.91/15,484.49
  6. Step 6: Final answer
    x = 12,692.74

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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.