Home / 12,930.59-19,412.31-10,995.10

Finding the Fourth Proportional to 12,930.59, 19,412.31 and 10,995.10

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Solution

The fourth proportional to 12,930.59, 19,412.31 and 10,995.10 is: 16,506.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.59 : 19,412.31 = 10,995.10 : x
  2. Step 2: Convert to fraction form
    12,930.59/19,412.31 = 10,995.10/x
  3. Step 3: Cross multiply
    12,930.59x = 19,412.31 × 10,995.10
  4. Step 4: Simplify right side
    12,930.59x = 213,440,289.68
  5. Step 5: Solve for x
    x = 213,440,289.68/12,930.59
  6. Step 6: Final answer
    x = 16,506.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.