Home / 15,671.20-23,485.44-7,885.36

Finding the Fourth Proportional to 15,671.20, 23,485.44 and 7,885.36

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Solution

The fourth proportional to 15,671.20, 23,485.44 and 7,885.36 is: 11,817.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.20 : 23,485.44 = 7,885.36 : x
  2. Step 2: Convert to fraction form
    15,671.20/23,485.44 = 7,885.36/x
  3. Step 3: Cross multiply
    15,671.20x = 23,485.44 × 7,885.36
  4. Step 4: Simplify right side
    15,671.20x = 185,191,149.16
  5. Step 5: Solve for x
    x = 185,191,149.16/15,671.20
  6. Step 6: Final answer
    x = 11,817.29

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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.