Home / 15,252.69-21,048.89-8,538.96

Finding the Fourth Proportional to 15,252.69, 21,048.89 and 8,538.96

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Solution

The fourth proportional to 15,252.69, 21,048.89 and 8,538.96 is: 11,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.69 : 21,048.89 = 8,538.96 : x
  2. Step 2: Convert to fraction form
    15,252.69/21,048.89 = 8,538.96/x
  3. Step 3: Cross multiply
    15,252.69x = 21,048.89 × 8,538.96
  4. Step 4: Simplify right side
    15,252.69x = 179,735,587.06
  5. Step 5: Solve for x
    x = 179,735,587.06/15,252.69
  6. Step 6: Final answer
    x = 11,783.86

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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.