Home / 13,907.28-19,191.24-7,618.56

Finding the Fourth Proportional to 13,907.28, 19,191.24 and 7,618.56

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Solution

The fourth proportional to 13,907.28, 19,191.24 and 7,618.56 is: 10,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.28 : 19,191.24 = 7,618.56 : x
  2. Step 2: Convert to fraction form
    13,907.28/19,191.24 = 7,618.56/x
  3. Step 3: Cross multiply
    13,907.28x = 19,191.24 × 7,618.56
  4. Step 4: Simplify right side
    13,907.28x = 146,209,613.41
  5. Step 5: Solve for x
    x = 146,209,613.41/13,907.28
  6. Step 6: Final answer
    x = 10,513.17

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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.