Home / 15,271.01-21,073.88-8,556.69

Finding the Fourth Proportional to 15,271.01, 21,073.88 and 8,556.69

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Solution

The fourth proportional to 15,271.01, 21,073.88 and 8,556.69 is: 11,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.01 : 21,073.88 = 8,556.69 : x
  2. Step 2: Convert to fraction form
    15,271.01/21,073.88 = 8,556.69/x
  3. Step 3: Cross multiply
    15,271.01x = 21,073.88 × 8,556.69
  4. Step 4: Simplify right side
    15,271.01x = 180,322,615.47
  5. Step 5: Solve for x
    x = 180,322,615.47/15,271.01
  6. Step 6: Final answer
    x = 11,808.17

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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.