Home / 12,930.93-19,405.71-6,359.04

Finding the Fourth Proportional to 12,930.93, 19,405.71 and 6,359.04

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Solution

The fourth proportional to 12,930.93, 19,405.71 and 6,359.04 is: 9,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.93 : 19,405.71 = 6,359.04 : x
  2. Step 2: Convert to fraction form
    12,930.93/19,405.71 = 6,359.04/x
  3. Step 3: Cross multiply
    12,930.93x = 19,405.71 × 6,359.04
  4. Step 4: Simplify right side
    12,930.93x = 123,401,686.12
  5. Step 5: Solve for x
    x = 123,401,686.12/12,930.93
  6. Step 6: Final answer
    x = 9,543.14

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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.