Home / 13,805.18-19,051.18-7,517.58

Finding the Fourth Proportional to 13,805.18, 19,051.18 and 7,517.58

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Solution

The fourth proportional to 13,805.18, 19,051.18 and 7,517.58 is: 10,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.18 : 19,051.18 = 7,517.58 : x
  2. Step 2: Convert to fraction form
    13,805.18/19,051.18 = 7,517.58/x
  3. Step 3: Cross multiply
    13,805.18x = 19,051.18 × 7,517.58
  4. Step 4: Simplify right side
    13,805.18x = 143,218,769.74
  5. Step 5: Solve for x
    x = 143,218,769.74/13,805.18
  6. Step 6: Final answer
    x = 10,374.28

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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.