Home / 13,305.84-19,966.54-7,387.71

Finding the Fourth Proportional to 13,305.84, 19,966.54 and 7,387.71

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Solution

The fourth proportional to 13,305.84, 19,966.54 and 7,387.71 is: 11,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.84 : 19,966.54 = 7,387.71 : x
  2. Step 2: Convert to fraction form
    13,305.84/19,966.54 = 7,387.71/x
  3. Step 3: Cross multiply
    13,305.84x = 19,966.54 × 7,387.71
  4. Step 4: Simplify right side
    13,305.84x = 147,507,007.22
  5. Step 5: Solve for x
    x = 147,507,007.22/13,305.84
  6. Step 6: Final answer
    x = 11,085.88

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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.