Home / 12,965.23-19,447.17-7,415.02

Finding the Fourth Proportional to 12,965.23, 19,447.17 and 7,415.02

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Solution

The fourth proportional to 12,965.23, 19,447.17 and 7,415.02 is: 11,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.23 : 19,447.17 = 7,415.02 : x
  2. Step 2: Convert to fraction form
    12,965.23/19,447.17 = 7,415.02/x
  3. Step 3: Cross multiply
    12,965.23x = 19,447.17 × 7,415.02
  4. Step 4: Simplify right side
    12,965.23x = 144,201,154.49
  5. Step 5: Solve for x
    x = 144,201,154.49/12,965.23
  6. Step 6: Final answer
    x = 11,122.14

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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.