Home / 13,035.63-17,979.61-8,557.75

Finding the Fourth Proportional to 13,035.63, 17,979.61 and 8,557.75

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Solution

The fourth proportional to 13,035.63, 17,979.61 and 8,557.75 is: 11,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.63 : 17,979.61 = 8,557.75 : x
  2. Step 2: Convert to fraction form
    13,035.63/17,979.61 = 8,557.75/x
  3. Step 3: Cross multiply
    13,035.63x = 17,979.61 × 8,557.75
  4. Step 4: Simplify right side
    13,035.63x = 153,864,917.58
  5. Step 5: Solve for x
    x = 153,864,917.58/13,035.63
  6. Step 6: Final answer
    x = 11,803.42

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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.