Home / 14,955.96-20,638.04-8,985.44

Finding the Fourth Proportional to 14,955.96, 20,638.04 and 8,985.44

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Solution

The fourth proportional to 14,955.96, 20,638.04 and 8,985.44 is: 12,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.96 : 20,638.04 = 8,985.44 : x
  2. Step 2: Convert to fraction form
    14,955.96/20,638.04 = 8,985.44/x
  3. Step 3: Cross multiply
    14,955.96x = 20,638.04 × 8,985.44
  4. Step 4: Simplify right side
    14,955.96x = 185,441,870.14
  5. Step 5: Solve for x
    x = 185,441,870.14/14,955.96
  6. Step 6: Final answer
    x = 12,399.20

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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.