Home / 10,542.77-15,808.79-3,520.26

Finding the Fourth Proportional to 10,542.77, 15,808.79 and 3,520.26

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Solution

The fourth proportional to 10,542.77, 15,808.79 and 3,520.26 is: 5,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.77 : 15,808.79 = 3,520.26 : x
  2. Step 2: Convert to fraction form
    10,542.77/15,808.79 = 3,520.26/x
  3. Step 3: Cross multiply
    10,542.77x = 15,808.79 × 3,520.26
  4. Step 4: Simplify right side
    10,542.77x = 55,651,051.09
  5. Step 5: Solve for x
    x = 55,651,051.09/10,542.77
  6. Step 6: Final answer
    x = 5,278.60

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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.