Home / 15,094.80-20,830.26-8,380.74

Finding the Fourth Proportional to 15,094.80, 20,830.26 and 8,380.74

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Solution

The fourth proportional to 15,094.80, 20,830.26 and 8,380.74 is: 11,565.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,094.80 : 20,830.26 = 8,380.74 : x
  2. Step 2: Convert to fraction form
    15,094.80/20,830.26 = 8,380.74/x
  3. Step 3: Cross multiply
    15,094.80x = 20,830.26 × 8,380.74
  4. Step 4: Simplify right side
    15,094.80x = 174,572,993.19
  5. Step 5: Solve for x
    x = 174,572,993.19/15,094.80
  6. Step 6: Final answer
    x = 11,565.11

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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.