Home / 13,263.13-19,890.24-6,685.12

Finding the Fourth Proportional to 13,263.13, 19,890.24 and 6,685.12

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Solution

The fourth proportional to 13,263.13, 19,890.24 and 6,685.12 is: 10,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.13 : 19,890.24 = 6,685.12 : x
  2. Step 2: Convert to fraction form
    13,263.13/19,890.24 = 6,685.12/x
  3. Step 3: Cross multiply
    13,263.13x = 19,890.24 × 6,685.12
  4. Step 4: Simplify right side
    13,263.13x = 132,968,641.23
  5. Step 5: Solve for x
    x = 132,968,641.23/13,263.13
  6. Step 6: Final answer
    x = 10,025.43

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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.