Home / 13,561.09-20,341.77-6,539.47

Finding the Fourth Proportional to 13,561.09, 20,341.77 and 6,539.47

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Solution

The fourth proportional to 13,561.09, 20,341.77 and 6,539.47 is: 9,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.09 : 20,341.77 = 6,539.47 : x
  2. Step 2: Convert to fraction form
    13,561.09/20,341.77 = 6,539.47/x
  3. Step 3: Cross multiply
    13,561.09x = 20,341.77 × 6,539.47
  4. Step 4: Simplify right side
    13,561.09x = 133,024,394.66
  5. Step 5: Solve for x
    x = 133,024,394.66/13,561.09
  6. Step 6: Final answer
    x = 9,809.27

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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.