Home / 15,539.20-21,444.04-8,465.44

Finding the Fourth Proportional to 15,539.20, 21,444.04 and 8,465.44

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Solution

The fourth proportional to 15,539.20, 21,444.04 and 8,465.44 is: 11,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.20 : 21,444.04 = 8,465.44 : x
  2. Step 2: Convert to fraction form
    15,539.20/21,444.04 = 8,465.44/x
  3. Step 3: Cross multiply
    15,539.20x = 21,444.04 × 8,465.44
  4. Step 4: Simplify right side
    15,539.20x = 181,533,233.98
  5. Step 5: Solve for x
    x = 181,533,233.98/15,539.20
  6. Step 6: Final answer
    x = 11,682.28

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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.