Home / 19,559.40-26,983.50-13,091.28

Finding the Fourth Proportional to 19,559.40, 26,983.50 and 13,091.28

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Solution

The fourth proportional to 19,559.40, 26,983.50 and 13,091.28 is: 18,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.40 : 26,983.50 = 13,091.28 : x
  2. Step 2: Convert to fraction form
    19,559.40/26,983.50 = 13,091.28/x
  3. Step 3: Cross multiply
    19,559.40x = 26,983.50 × 13,091.28
  4. Step 4: Simplify right side
    19,559.40x = 353,248,553.88
  5. Step 5: Solve for x
    x = 353,248,553.88/19,559.40
  6. Step 6: Final answer
    x = 18,060.30

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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.