Home / 13,780.06-19,015.82-7,492.43

Finding the Fourth Proportional to 13,780.06, 19,015.82 and 7,492.43

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Solution

The fourth proportional to 13,780.06, 19,015.82 and 7,492.43 is: 10,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.06 : 19,015.82 = 7,492.43 : x
  2. Step 2: Convert to fraction form
    13,780.06/19,015.82 = 7,492.43/x
  3. Step 3: Cross multiply
    13,780.06x = 19,015.82 × 7,492.43
  4. Step 4: Simplify right side
    13,780.06x = 142,474,700.24
  5. Step 5: Solve for x
    x = 142,474,700.24/13,780.06
  6. Step 6: Final answer
    x = 10,339.19

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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.