Home / 19,764.24-27,272.04-12,700.20

Finding the Fourth Proportional to 19,764.24, 27,272.04 and 12,700.20

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Solution

The fourth proportional to 19,764.24, 27,272.04 and 12,700.20 is: 17,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.24 : 27,272.04 = 12,700.20 : x
  2. Step 2: Convert to fraction form
    19,764.24/27,272.04 = 12,700.20/x
  3. Step 3: Cross multiply
    19,764.24x = 27,272.04 × 12,700.20
  4. Step 4: Simplify right side
    19,764.24x = 346,360,362.41
  5. Step 5: Solve for x
    x = 346,360,362.41/19,764.24
  6. Step 6: Final answer
    x = 17,524.60

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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.