Home / 12,966.20-19,433.10-9,499.40

Finding the Fourth Proportional to 12,966.20, 19,433.10 and 9,499.40

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Solution

The fourth proportional to 12,966.20, 19,433.10 and 9,499.40 is: 14,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.20 : 19,433.10 = 9,499.40 : x
  2. Step 2: Convert to fraction form
    12,966.20/19,433.10 = 9,499.40/x
  3. Step 3: Cross multiply
    12,966.20x = 19,433.10 × 9,499.40
  4. Step 4: Simplify right side
    12,966.20x = 184,602,790.14
  5. Step 5: Solve for x
    x = 184,602,790.14/12,966.20
  6. Step 6: Final answer
    x = 14,237.23

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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.