Home / 13,930.41-19,213.23-9,681.42

Finding the Fourth Proportional to 13,930.41, 19,213.23 and 9,681.42

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Solution

The fourth proportional to 13,930.41, 19,213.23 and 9,681.42 is: 13,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.41 : 19,213.23 = 9,681.42 : x
  2. Step 2: Convert to fraction form
    13,930.41/19,213.23 = 9,681.42/x
  3. Step 3: Cross multiply
    13,930.41x = 19,213.23 × 9,681.42
  4. Step 4: Simplify right side
    13,930.41x = 186,011,253.12
  5. Step 5: Solve for x
    x = 186,011,253.12/13,930.41
  6. Step 6: Final answer
    x = 13,352.90

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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.