Home / 15,060.80-20,784.12-8,346.44

Finding the Fourth Proportional to 15,060.80, 20,784.12 and 8,346.44

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Solution

The fourth proportional to 15,060.80, 20,784.12 and 8,346.44 is: 11,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.80 : 20,784.12 = 8,346.44 : x
  2. Step 2: Convert to fraction form
    15,060.80/20,784.12 = 8,346.44/x
  3. Step 3: Cross multiply
    15,060.80x = 20,784.12 × 8,346.44
  4. Step 4: Simplify right side
    15,060.80x = 173,473,410.53
  5. Step 5: Solve for x
    x = 173,473,410.53/15,060.80
  6. Step 6: Final answer
    x = 11,518.21

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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.