Home / 14,045.54-19,382.47-7,757.78

Finding the Fourth Proportional to 14,045.54, 19,382.47 and 7,757.78

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Solution

The fourth proportional to 14,045.54, 19,382.47 and 7,757.78 is: 10,705.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.54 : 19,382.47 = 7,757.78 : x
  2. Step 2: Convert to fraction form
    14,045.54/19,382.47 = 7,757.78/x
  3. Step 3: Cross multiply
    14,045.54x = 19,382.47 × 7,757.78
  4. Step 4: Simplify right side
    14,045.54x = 150,364,821.81
  5. Step 5: Solve for x
    x = 150,364,821.81/14,045.54
  6. Step 6: Final answer
    x = 10,705.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.