Home / 19,141.77-28,718.73-9,784.29

Finding the Fourth Proportional to 19,141.77, 28,718.73 and 9,784.29

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Solution

The fourth proportional to 19,141.77, 28,718.73 and 9,784.29 is: 14,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.77 : 28,718.73 = 9,784.29 : x
  2. Step 2: Convert to fraction form
    19,141.77/28,718.73 = 9,784.29/x
  3. Step 3: Cross multiply
    19,141.77x = 28,718.73 × 9,784.29
  4. Step 4: Simplify right side
    19,141.77x = 280,992,382.75
  5. Step 5: Solve for x
    x = 280,992,382.75/19,141.77
  6. Step 6: Final answer
    x = 14,679.54

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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.