Home / 15,769.69-21,762.27-8,696.36

Finding the Fourth Proportional to 15,769.69, 21,762.27 and 8,696.36

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Solution

The fourth proportional to 15,769.69, 21,762.27 and 8,696.36 is: 12,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.69 : 21,762.27 = 8,696.36 : x
  2. Step 2: Convert to fraction form
    15,769.69/21,762.27 = 8,696.36/x
  3. Step 3: Cross multiply
    15,769.69x = 21,762.27 × 8,696.36
  4. Step 4: Simplify right side
    15,769.69x = 189,252,588.74
  5. Step 5: Solve for x
    x = 189,252,588.74/15,769.69
  6. Step 6: Final answer
    x = 12,001.04

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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.