Home / 15,454.80-23,190.60-8,434.40

Finding the Fourth Proportional to 15,454.80, 23,190.60 and 8,434.40

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Solution

The fourth proportional to 15,454.80, 23,190.60 and 8,434.40 is: 12,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.80 : 23,190.60 = 8,434.40 : x
  2. Step 2: Convert to fraction form
    15,454.80/23,190.60 = 8,434.40/x
  3. Step 3: Cross multiply
    15,454.80x = 23,190.60 × 8,434.40
  4. Step 4: Simplify right side
    15,454.80x = 195,598,796.64
  5. Step 5: Solve for x
    x = 195,598,796.64/15,454.80
  6. Step 6: Final answer
    x = 12,656.18

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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.