Home / 12,359.40-18,522.90-10,966.20

Finding the Fourth Proportional to 12,359.40, 18,522.90 and 10,966.20

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Solution

The fourth proportional to 12,359.40, 18,522.90 and 10,966.20 is: 16,434.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.40 : 18,522.90 = 10,966.20 : x
  2. Step 2: Convert to fraction form
    12,359.40/18,522.90 = 10,966.20/x
  3. Step 3: Cross multiply
    12,359.40x = 18,522.90 × 10,966.20
  4. Step 4: Simplify right side
    12,359.40x = 203,125,825.98
  5. Step 5: Solve for x
    x = 203,125,825.98/12,359.40
  6. Step 6: Final answer
    x = 16,434.93

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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.