Home / 19,555.33-27,008.63-13,256.77

Finding the Fourth Proportional to 19,555.33, 27,008.63 and 13,256.77

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Solution

The fourth proportional to 19,555.33, 27,008.63 and 13,256.77 is: 18,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.33 : 27,008.63 = 13,256.77 : x
  2. Step 2: Convert to fraction form
    19,555.33/27,008.63 = 13,256.77/x
  3. Step 3: Cross multiply
    19,555.33x = 27,008.63 × 13,256.77
  4. Step 4: Simplify right side
    19,555.33x = 358,047,195.93
  5. Step 5: Solve for x
    x = 358,047,195.93/19,555.33
  6. Step 6: Final answer
    x = 18,309.44

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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.