Home / 12,456.34-18,684.62-3,572.70

Finding the Fourth Proportional to 12,456.34, 18,684.62 and 3,572.70

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Solution

The fourth proportional to 12,456.34, 18,684.62 and 3,572.70 is: 5,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.34 : 18,684.62 = 3,572.70 : x
  2. Step 2: Convert to fraction form
    12,456.34/18,684.62 = 3,572.70/x
  3. Step 3: Cross multiply
    12,456.34x = 18,684.62 × 3,572.70
  4. Step 4: Simplify right side
    12,456.34x = 66,754,541.87
  5. Step 5: Solve for x
    x = 66,754,541.87/12,456.34
  6. Step 6: Final answer
    x = 5,359.08

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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.