Home / 15,300.24-21,126.78-12,468.04

Finding the Fourth Proportional to 15,300.24, 21,126.78 and 12,468.04

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Solution

The fourth proportional to 15,300.24, 21,126.78 and 12,468.04 is: 17,216.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.24 : 21,126.78 = 12,468.04 : x
  2. Step 2: Convert to fraction form
    15,300.24/21,126.78 = 12,468.04/x
  3. Step 3: Cross multiply
    15,300.24x = 21,126.78 × 12,468.04
  4. Step 4: Simplify right side
    15,300.24x = 263,409,538.11
  5. Step 5: Solve for x
    x = 263,409,538.11/15,300.24
  6. Step 6: Final answer
    x = 17,216.04

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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.