Home / 13,965.50-19,272.53-7,678.01

Finding the Fourth Proportional to 13,965.50, 19,272.53 and 7,678.01

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Solution

The fourth proportional to 13,965.50, 19,272.53 and 7,678.01 is: 10,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.50 : 19,272.53 = 7,678.01 : x
  2. Step 2: Convert to fraction form
    13,965.50/19,272.53 = 7,678.01/x
  3. Step 3: Cross multiply
    13,965.50x = 19,272.53 × 7,678.01
  4. Step 4: Simplify right side
    13,965.50x = 147,974,678.07
  5. Step 5: Solve for x
    x = 147,974,678.07/13,965.50
  6. Step 6: Final answer
    x = 10,595.73

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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.