Home / 13,907.76-19,192.50-7,620.14

Finding the Fourth Proportional to 13,907.76, 19,192.50 and 7,620.14

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Solution

The fourth proportional to 13,907.76, 19,192.50 and 7,620.14 is: 10,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.76 : 19,192.50 = 7,620.14 : x
  2. Step 2: Convert to fraction form
    13,907.76/19,192.50 = 7,620.14/x
  3. Step 3: Cross multiply
    13,907.76x = 19,192.50 × 7,620.14
  4. Step 4: Simplify right side
    13,907.76x = 146,249,536.95
  5. Step 5: Solve for x
    x = 146,249,536.95/13,907.76
  6. Step 6: Final answer
    x = 10,515.68

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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.