Home / 12,972.40-19,429.44-9,094.12

Finding the Fourth Proportional to 12,972.40, 19,429.44 and 9,094.12

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Solution

The fourth proportional to 12,972.40, 19,429.44 and 9,094.12 is: 13,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.40 : 19,429.44 = 9,094.12 : x
  2. Step 2: Convert to fraction form
    12,972.40/19,429.44 = 9,094.12/x
  3. Step 3: Cross multiply
    12,972.40x = 19,429.44 × 9,094.12
  4. Step 4: Simplify right side
    12,972.40x = 176,693,658.89
  5. Step 5: Solve for x
    x = 176,693,658.89/12,972.40
  6. Step 6: Final answer
    x = 13,620.74

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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.