Home / 13,562.98-20,328.06-6,985.58

Finding the Fourth Proportional to 13,562.98, 20,328.06 and 6,985.58

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Solution

The fourth proportional to 13,562.98, 20,328.06 and 6,985.58 is: 10,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.98 : 20,328.06 = 6,985.58 : x
  2. Step 2: Convert to fraction form
    13,562.98/20,328.06 = 6,985.58/x
  3. Step 3: Cross multiply
    13,562.98x = 20,328.06 × 6,985.58
  4. Step 4: Simplify right side
    13,562.98x = 142,003,213.93
  5. Step 5: Solve for x
    x = 142,003,213.93/13,562.98
  6. Step 6: Final answer
    x = 10,469.91

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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.