Home / 15,930.04-21,984.69-9,556.87

Finding the Fourth Proportional to 15,930.04, 21,984.69 and 9,556.87

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Solution

The fourth proportional to 15,930.04, 21,984.69 and 9,556.87 is: 13,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930.04 : 21,984.69 = 9,556.87 : x
  2. Step 2: Convert to fraction form
    15,930.04/21,984.69 = 9,556.87/x
  3. Step 3: Cross multiply
    15,930.04x = 21,984.69 × 9,556.87
  4. Step 4: Simplify right side
    15,930.04x = 210,104,776.54
  5. Step 5: Solve for x
    x = 210,104,776.54/15,930.04
  6. Step 6: Final answer
    x = 13,189.22

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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.