Home / 14,957.42-20,640.30-8,985.56

Finding the Fourth Proportional to 14,957.42, 20,640.30 and 8,985.56

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Solution

The fourth proportional to 14,957.42, 20,640.30 and 8,985.56 is: 12,399.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,957.42 : 20,640.30 = 8,985.56 : x
  2. Step 2: Convert to fraction form
    14,957.42/20,640.30 = 8,985.56/x
  3. Step 3: Cross multiply
    14,957.42x = 20,640.30 × 8,985.56
  4. Step 4: Simplify right side
    14,957.42x = 185,464,654.07
  5. Step 5: Solve for x
    x = 185,464,654.07/14,957.42
  6. Step 6: Final answer
    x = 12,399.51

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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.