Home / 12,943.42-19,385.96-9,065.14

Finding the Fourth Proportional to 12,943.42, 19,385.96 and 9,065.14

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Solution

The fourth proportional to 12,943.42, 19,385.96 and 9,065.14 is: 13,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.42 : 19,385.96 = 9,065.14 : x
  2. Step 2: Convert to fraction form
    12,943.42/19,385.96 = 9,065.14/x
  3. Step 3: Cross multiply
    12,943.42x = 19,385.96 × 9,065.14
  4. Step 4: Simplify right side
    12,943.42x = 175,736,441.43
  5. Step 5: Solve for x
    x = 175,736,441.43/12,943.42
  6. Step 6: Final answer
    x = 13,577.28

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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.